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.

The fifth-longest natural arch in the world, and the longest outside China.

This raised bulls-eye visible from space was the subject of an intense geologic controversy.

Few things look more out of place than the electric blue ponds in the reddish-brown desert of Utah.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

A striking, menacing sandstone peak towering above a landscape that's equal parts Mordor and the Moon.

Local lore holds that Butch Cassidy took an escape route through Red Canyon's sandstone hoodoos after an attempted murder.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Settled by the Church of Jesus Christ of Latter-day Saints in 1859, this abandoned frontier town has appeared in several films.

Hundreds of drawings left by the land's previous inhabitants remain mysterious.

The only completed wing of Utah's first capitol is filled with artifacts and odd stories about its past.

Dedicated to the history of the 1,000 nuclear missiles that once covered the Great Plains.

The iconic remains of the original Academic Hall that burned down in 1892.

The world-record holder for the longest bridge stretching continuously over water.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.