• Agena B upper stage at the Udvar-Hazy Center
• Apollo Command Module 009 (CM-009), the first production Apollo command module to be launched on a Saturn booster (on AS-201) at Strategic Air & Space
• Apollo 6 at the Fernbank Science Center
• Apollo 7 at the Frontiers of Flight Museum
• Frank Borman's Apollo 8 pressure helmet assembly (aka "bubble" helmet), at the Museum of Science & Industry
• Jim Lovell's Apollo 8 suit, at Glenn Research Center
• Some Apollo artifacts, including Lovell's Apollo 8 inflight coverall garment and the Apollo 8 flight plan at the Museum of Science & Industry
• The Apollo 10 command module hatch, at the former Michigan Space & Science Center
• Apollo 11's command module Columbia, at the National Air & Space Museum
• The Apollo 11 command module hatch, at the National Air & Space Museum
• The Apollo 11 Mobile Quarantine Facility (MQF), at the Udvar-Hazy Center
• The Apollo 11 uprighting bags and flotation collar, at the Udvar-Hazy Center
• Apollo 13, its hatch, and ablative panels at the Kansas Cosmosphere
• Jim Lovell's Apollo 13 Lunar Extravehicular Visor Assembly (LEVA), both at its previous location of the Museum of Science & Industry and its current location of Adler Planetarium
• Jim Lovell's Apollo 13 lunar EVA gloves, both at their previous location of the Museum of Science & Industry and their current location of Adler Planetarium
• Apollo 14's command module Kitty Hawk at the Astronaut Hall of Fame
• Jim Irwin's Apollo 15 AL7B spacesuit at the Udvar-Hazy Center
• The Apollo spacecraft used by the SL-2 mission at the Naval Aviation Museum
• The Apollo spacecraft used by the SL-3 mission at the Glenn Research Center
• The Apollo spacecraft used by the SL-4 mission at the National Air & Space Museum
• Apollo Command-Service Module #119 (CSM-119) at the Kennedy Space Center
• The flown Apollo-Soyuz Test Project Command Module, when it was still at the Apollo-Saturn V Center at the Kennedy Space Center
• An Apollo-Soyuz Test Project (ASTP) display, which includes the unflown Command-Service Module #105AV (CSM-105AV), the backup docking module (DM-1), and a full-sized Soyuz model at the National Air & Space Museum
• An Apollo-Soyuz Test Project (ASTP) display, which includes the 1-G trainer Command-Service Module JSC#2, a low-fidelity docking module, and a full-sized Soyuz model at the Kansas Cosmosphere
• An engineering model of the ASTP docking module at the Kennedy Space Center
• A low-fidelity ASTP docking module display and a high-fidelity ASTP docking module mockup at Stafford Air & Space
• ASTP in-flight garments as worn by Tom Stafford and Alexei Leonov at Stafford Air & Space
• Apollo boilerplate BP-213 at the Cernan Earth & Space Center
• Apollo boilerplate BP-1207 at the Discovery Science and Outdoor Center
• Apollo "Billy Pugh" helicopter rescue net, at the National Air & Space Museum
• Apollo biological isolation garment (BIGs)at the US Space & Rocket Center
• An Apollo couch at the Fernbank Science Center
• An Apollo High Gain Antenna at Stafford Air & Space
• An Apollo docking probe and drogue assembly at Stafford Air & Space
• The Apollo/Range Instrumentation Aircraft ARIA Bird of Prey (SN 60-374) at the Air Force Museum
• The Apollo-Saturn V Center at the Kennedy Space Center
• Ascent Propulsion System thrust chamber (from the Apollo lunar module) at the Air Zoo
• Ascent Propulsion System thrust chamber (from the Apollo lunar module) at the Cernan Earth & Space Center
• Ascent Propulsion System engine (from the Apollo lunar module ascent stage) at Glenn Research Center
• Ascent Propulsion System engine (from the Apollo lunar module ascent stage) at the former Michigan Space & Science Center
• Ascent Propulsion System engine (from the Apollo lunar module) at the National Air & Space Museum
• Ascent Propulsion System engine (from the Apollo lunar module ascent stage), both in the "old" building and in the Davidson Center, at the US Space & Rocket Center
• Ascent Propulsion System engine mockup (from the Apollo lunar module ascent stage), at the US Space & Rocket Center
• Atlas 8A at Strategic Air & Space
• Blue Scout solid propellant space launch vehicle at Strategic Air & Space
• The Saturn V Command-Service Module/Spacecraft-Lunar Module Adapter (CSM/SLA) at Space Center Houston
• Walt Cunningham's Ambassador of Exploration moon rock at the Frontiers of Flight Museum
• Descent Propulsion System engine (from the Apollo lunar module descent stage), when it was displayed outdoors and when it was displayed in the "old" museum of the US Space & Rocket Center
• Descent Propulsion System engine mockup (from the Apollo lunar module descent stage), at the US Space & Rocket Center
• The firing room mockup at the Apollo-Saturn V Center at the Kennedy Space Center
• The Launch Control Center (LCC) at the Kennedy Space Center
• The Launch Complex 34 (LC-34) at the Kennedy Space Center
• The Launch Complex 37 (LC-34) at the Kennedy Space Center
• The LC-39 Observation Gantry at the Kennedy Space Center
• Lunar Module evolution, depicted via a series of models, at the Cradle of Aviation
• Apollo Lunar Module LTA-3A (Lunar Test Article 3A) at the Kansas Cosmosphere
• Apollo Lunar Module LTA-3D (Lunar Test Article 3D) at the Franklin Institute
• Lunar Module #2, aka "LM-2", at the National Air & Space Museum
• A lunar module simulator at the Cradle of Aviation
• Lunar module cockpit mockup (featuring the LM astronaut restraint assembly) at the Cradle of Aviation
• Lunar module cockpit mockup at the National Air & Space Museum.
• Apollo Lunar Module LM-1 tank section at the Cradle of Aviation
• Lunar module artifacts (including an RCS thruster, thrust translation and attitude controllers, a section of an APS engine, LM landing gear strut crushable aluminum honeycomb, and a lunar surface sensing probe) at the Cradle of Aviation
• Lunar Module Rendezvous Radar Angenna at the Air Zoo
• Lunar Module Rendezvous Radar Angenna at Stafford Air & Space
• Apollo Lunar Module mockup at Stennis Space Center
• Lunar module COAS (Crew Optical Alignment Sight) at Science Museum Oklahoma (formerly the Omniplex)
• A model depicting an early lunar module at the National Air & Space Museum.
• Apollo lunar surface gnomon at the Franklin Institute
• The LUT Segments & Crane by the Saturn V in the Apollo-Saturn V Center at the Kennedy Space Center
• Apollo space suit at the Franklin Institute
• Aldrin's Apollo 11 lunar EVA space suit, at the National Air & Space Museum
• Armstrong's Apollo 11 backup space suit at Neil Armstrong Air & Space
• Schmitt's Apollo 17 lunar EVA gloves at the Cernan Earth & Space Center
• Arlington National Cemetery
• Building 29 at Goddard Space Flight Center
• Building 4200 (MSFC headquarters building) at the Marshall Space Flight Center
• Echo 1 flight spare at the Udvar-Hazy Center
• Echo satellite adapter at the Cradle of Aviation
• F-1 engine at the Air Zoo
• F-1 engine at Kennedy Space Center
• F-1 engine at Building 4200 (MSFC headquarters building) at the Marshall Space Flight Center
• F-1 engine F-4023 at the Marshall Space Flight Center
• F-1 engine at the former Michigan Space & Science Center
• F-1 engines, at the National Air & Space Museum
• F-1 engine at the Omniplex
• F-1 engine at Space Center Houston
• F-1 engine 114-2 at Stafford Air & Space
• F-1 engine at Stennis Space Center
• F-1 engineat the US Space & Rocket Center
• A training space suit from Yuri Gagarin's Vostok 1 flight at the National Air & Space Museum
• Gemini 2/MOL at Kennedy Space Center
• Gemini 4 hatch at Cradle of Aviation
• Gemini 5 at Space Center Houston
• Gemini 6 at the Oklahoma History Center
• Gemini 8 at Neil Armstrong Air & Space
• Gemini 10 at Kansas Cosmosphere
• Gemini 12 at Adler Planetarium
• Jim Lovell's Gemini 12 watch, at Adler Planetarium
• The unflown Gemini 3A spacecraft at the St. Louis Science Center
• The Gemini engineering development fixture (which is just a fancy phrase for a mockup) at the Boeing Prologue Room
• Gemini/MOL at the Air Force Museum
• Gemini AMU at the Air Force Museum
• Gemini artifactsat the US Space & Rocket Center
• A Gemini G5C suit at the Astronaut Hall of Fame
• A Gemini boilerplate at Strategic Air & Space
• Gemini monuments at the Space Walk of Fame
• A Gemini trainer at the Astronaut Hall of Fame
• Gemini simulatorat the US Space & Rocket Center
• Various Hubble mockups at Goddard Space Flight Center
• J-2 engine at Building 4200 (MSFC headquarters building) at the Marshall Space Flight Center
• J-2 engine at the Air Zoo
• Langley Research Center
• Little Joe II at Space Center Houston
• Manned Orbiting Laboratory (MOL) space suit at the Omniplex
• Marshall Space Flight Center's East Test Area
• Marshall Space Flight Center's Rocket Garden
• A Mercury-Atlas booster skin section, from John Glenn's Friendship 7 flight, at the Astronaut Hall of Fame
• Mercury monuments at the Space Walk of Fame
• John Glenn's Friendship 7 space suit at the National Air & Space Museum
• Mercury-Redstone at Space Center Houston
• Mercury-Redstone A-6 engine at the former Michigan Space & Science Center
• The Mercury couch of Deke Slayton at the Astronaut Hall of Fame
• Mercury spacecraft Faith 7 heatshield section at the Astronaut Hall of Fame
• Mercury spacecraft Faith 7 heatshield section at the Boeing Prologue Room
• Mercury spacecraft Freedom 7, at the US Naval Academy
• Mercury spacecraft Liberty Bell 7, both at its permanent home at the Kansas Cosmosphere and during its traveling tour.
• Mercury spacecraft Sigma 7 at the Astronaut Hall of Fame
• The Mercury spacesuit of Gus Grissom, from his Liberty Bell 7 flight, at the Astronaut Hall of Fame
• The Mercury spacesuit helmet of Gus Grissom, from his Liberty Bell 7 flight, at the Grissom Memorial.
• Mercury spacecraft #19 at the St. Louis Science Center
• Mercury Little Joe booster at the Wallops Flight Facility (Wallops Island)
• A US Navy Mark IV pressure suit (on which the Project Mercury space suit was based) at the National Air & Space Museum
• A Mission Control Console at the Astronaut Hall of Fame
• The NASA Headquarters building
• Pad 39A and 39B at the Kennedy Space Center
• Pegasus Micrometeoroid Satellite mockup at the former Michigan Space & Science Center
• Ranger (lunar probe) replica, at the National Air & Space Museum
• RL-10 engine at Glenn Research Center
• The backup Skylab Orbital Workshop at the National Air & Space Museum
• Anita, one of two spiders who flew on SL-3, at the Udvar-Hazy Center
• Arabella, one of two spiders who flew on SL-3, at the U.S. Space & Rocket Center
• Rusty Schweickart's Skylab A7LB training spacesuit at the Wallops Island visitor center on Wallops Island, Virginia
• A Skylab A7LB spacesuit at the Museum of Aviation. This suit is accompanied by nearly all of the Skylab-specific suit accessories
• Sounding rockets at the Wallops Flight Facility (Wallops Island)
• The liquid-cooled garment at NASA's Glenn Research Center
• The cut-away Portable Life Support System (PLSS) at the National Air & Space Museum
• Thor missile at Strategic Air & Space
• Titan II at the Air Force Museum
• Titan II at Stafford Air & Space
• Titan II first stage LR-87 engines at Stafford Air & Space
• Titan II second stage LR-91 engine at Stafford Air & Space
• Two Titan YLR-91 engines at Stafford Air & Space
• SA-D (Block I Saturn I Dynamic Test Vehicle) at the Marshall Space Flight Center
• SA-T (Block I Saturn I first stage) at the Marshall Space Flight Center
• S-I 1/4 scale model (Block I Saturn I first stage) manufactured by the ABMA at the former Michigan Space & Science Center
• Saturn/Apollo Reunions at the US Space & Rocket Center
• The Saturn I/IB Static Test Tower at the Marshall Space Flight Center
• Saturn I Block I holddown arms at the Marshall Space Flight Center
• Saturn I Block I support arms at the U.S. Space & Rocket Center
• Saturn I Block II/Saturn IB holddown arms at the Ardmore Welcome Center
• Saturn I Block II/Saturn IB holddown arms at the Kennedy Space Center
• The Saturn V at the Kennedy Space Center
• Overall pictures of the Saturn V at Space Center Houston
• Restoration of the USSRC Saturn V, including restoration progress as of June 2005, August 2005, December 2005, and July 2006; groundbreaking for the Saturn V Center; and as "Rocket Roll", the move from the Rocket Park to the Davidson Center.
• S-IC-15 (Saturn V first stage) at the Michoud Assembly Facility
• The Saturn V S-IC (first) stage at Kennedy Space Center
• The Saturn V S-IC (first) stage at Space Center Houston
• S-IC transporter at the Michoud Assembly Facility
• The Saturn V S-II (second) stage at Kennedy Space Center
• The Saturn V S-II (second) stage at Space Center Houston
• The Saturn V S-IVB (third) stage at Kennedy Space Center
• The Saturn V S-IVB (third) stage at Space Center Houston
• Service Propulsion System (SPS) engine while it was undergoing restoration at the Frontiers of Flight Museum
• Skylab artifacts including triangular interlocking shoes and the Lower Body Negative Pressure experiment at the former Michigan Space & Science Center
• The descent module from Soyuz TM-10 at the National Air & Space Museum
• A full-scale Soyuz model at the Kennedy Space Center
• Construction photos of the Solar Dynamics Observatory, taken during a tour of Goddard Space Flight Center.
• Space Environment Simulator (thermal vacuum chamber) at Goddard Space Flight Center
• The Space Shuttle Enterprise at the Udvar-Hazy Center
• The Space Shuttle Main Engine (SSME) at the LC-39 Observation Gantry at the Kennedy Space Center
• Space Shuttle Main Engine (SSME) at Building 4200 (MSFC headquarters building) at the Marshall Space Flight Center
• The Space Shuttle manned maneuvering unit (MMU) at the Udvar-Hazy Center
• SSDIF High Bay Clean Room (Hubble clean room) at Goddard Space Flight Center
• Tom Stafford's Ambassador of Exploration Award at Stafford Air & Space
• Surveyor test article, at the National Air & Space Museum
• Swing Arm 9, in the Rocket Garden at the Kennedy Space Center
• Talon Park at Space Center Houston
• The Vehicle Assembly Building (VAB) at the Kennedy Space Center
• Apollo white room at the Kansas Cosmosphere
• Apollo white room (attached to swing arm #9) at Kennedy Space Center
• Apollo white room at the U.S. Space & Rocket Center

I have literally tens of thousands of additional pictures (at least several thousand of which are good enough for other people to look at :-) which I will be sorting through and posting in the coming days, weeks, months, and years.