The most powerful laboratory radiation source in the world pulses with 1,000 times the electricity of a lightning bolt.

One of the American Southwest's most extensive collections of Navajo rock art.

A half-acre utopia in the New Mexico desert features a graveyard, a game of horseshoes, a library, and a mailbox.

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

An abandoned amusement park based on the popular 1940s Red Ryder comic strip.

These ruins of a pre-Columbian cliff village are among the most beautiful and well preserved in New Mexico.

A preserve with 75,000 ancient drawings remains the realm of public – not just scientific – exploration.

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

The childhood home of Henry Jones Jr. is now an adventure-themed bed and breakfast.

When ecosystems collide in the arid Southwest.

The largest self-built castle in the U.S., six decades in the making.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

Experience a quartz crystal sound bath inside a storied, all-wood sound-chamber.

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

It would be easy to walk past this unusual piece of art and have no idea it pays tribute to the odd life of a real chicken.

Metal water storage tank turned ethereal concert hall.

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

A library built during San Francisco's pioneer times is a student's retreat, bibliophile's sanctuary, and chess player's delight.

A Barbary Coast watering hole built into a Gold Rush shipwreck.

Inside an old airplane hangar, friends and strangers alike play on a massive trampoline.

A modern mechanical planetary system, part of a 10,000 year clock.