Trinity Site
Only a monument remains at Trinity Site, where the world's first atomic bomb exploded, on July 16, 1945. The resulting crater has been filled in, but the test site and monument are open for public viewing and self-guided tours two days of the year (the first Satudays in April and October). The McDonald ranch house, where the first plutonium core for the bomb was assembled, can be toured on those days. Picnic tables are available. It's wheelchair-accessible.
There are no vehicle services or gas at the site, and visitors must bring their own food and water.
