Around half a million years ago, these magnificent columnar basalt cliffs were formed from cooling lava.

A small town built on an abandoned airfield has former runways as streets and a bar and grill in an old airplane hangar.

This Wyoming town is fascinated by a particular mythical creature.

Long before guestbooks and hotels, frontier travelers signed their names on this rock face.

The start of the group that straightened the teeth of a nation.

This deserted Gold Rush town is home to a Masonic lodge that, strangely enough, still holds meetings.

This massive home was constructed by one of the greatest conservationists in Colorado history.

A small side chapel in Santa Fe's basilica is home to the oldest statute of the Virgin Mary in North America.

Sports history, made in the Arroyo Seco.

A tunnel with windows, so you don't miss out on the impressive views.

Senators used to relax in the nearly forgotten marble tubs now hidden in the U.S. Capitol Building's basement.

The unusual patterns in this rock formation result from two distinct modes of weathering.

Inside this casino, visitors are treated to slot machines and a rare German Christmas pyramid.

The largest source of fossilized insects anywhere.

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

Swiss vineyards in a UNESCO heritage site.

The Swiss artist's bulbous and overgrown shape-shifting sculpture controversially graces the center of Bern.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

Florentine Renaissance style building in Switzerland, home to the world's largest taxidermy Great White Shark.

Artworks by loners, prisoners and the criminally insane.

This colorful but controversial ceiling has been likened to a 21st-century Sistine Chapel.

A focal point of in Denver’s skyline for over a century, inspired by a Venetian basilica.

A psychedelic tribute to one of Georgia's most unique artistic visionaries, out of place and time in the heart of Atlanta.

After being lost for nearly a century, this historic bell finally returned home after its mysterious theft.