The final resting place of the world's first nuclear reactor.

This innocuous New Mexico storefront was once the secret jump-off spot for Manhattan Project scientists.

The birthplace of both the Atomic Age and Godzilla, and the namesake of the bathing suit.

An enormous concrete structure built over a nuclear crater.

The site where a nuclear bomb was lowered over 8,000 feet underground and detonated as an experiment in natural gas extraction.

The contents of this safe survived a 37-kiloton nuclear bomb.

On October 26, 1963, a 12-kiloton nuclear device was detonated here in granite some 1,211 feet below the ground surface.

A facility built in 1992 for an underground nuclear test remains in place today.