The monolith and "Fat Man" used to deliver the plutonium bomb.
Picture of the orignal tower used to support the device and ultrafast photos of the explosion at different times ranging from 0.006 s to 10 s. The aerial shot was 24 hours later. The photos are mounted on the fences.
The shelter for the original site and the remains of the unused bomb holder.
Two pieces of Trinitite (greenish, fused rock) from ground zero at Trinity Site. The photo was taken at Science in American at the Smithsonian Institute.