The "Firing Room Theater". This is not a replica of the Apollo control center - these are the original chairs, consoles and tables from the control center where people sat and launched Apollo 8[a] to the moon. The videos show the liftoff, complete with a distant rocket rumble and light.
Saturn V second stage nozzles. Five Rocketdyne J-2[b] liquid hydrogen / oxygen engines each delivering about 1 MN. This can be compared to the five kerosene / liquid oxygen burning F-1[c] engines of the first stage, which each deliver 6.77 MN.
The top of the first stage is seen to the left and the five nozzles of the second stage to the right. The interstage covering has been removed, and also not shown are the solid-fueled ullage motors[d] that accelerate the stage to ensure that the propellant is pushed "down" towards the engines prior to liquid-fueled engine ignition.
The "Space Mirror"[e] memorial to fallen astronauts. It was dedicated in 1991 and updated as needed since. So far there are 24 names on it. The monument is built from stone slabs sitting on a metal frame, with the plates containing names being thinner and having the letters cut out and covered with a semi-transparent material. The whole structure is lit from behind, projecting the names into the sky.