This magnificent natural sandstone bridge is one of the largest in the world and is an iconic symbol for Lake Powell.

A house carved into a rock in the 1940s.

This site is home to ancient petroglyphs and pictographs dating back to 6,000 B.C.

Oh, just a motel on the edge of the desert decorated with thousands of clowns conveniently located next to an abandoned graveyard.

Most-visited and most-photographed slot canyon in the American Southwest.

A sharp bend in a dramatic river canyon cut through red rocks.

Dedicated to the god Dionysus, this theatre was used for both musical and theatrical performances.

The ruins of this monumental city founded by the first Roman Emperor are strangely overlooked by most travelers.

Monasteries on rock pillars, once accessible only by frayed ropes.

What appears to be an ancient Roman temple is actually a Catholic church.

A brutalist gem towering over the heart of Milan.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

Third time's a charm, or in this case, two testicles are.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

Artistic tombs, monuments, and a beautiful "Hall of Fame" lurk inside this cemetery.

A larger-than-life house of cards stands outside the house of a former fashion designer.

This Volcano-like rest area was designed by architect Giulio Ceppi built according to energy efficiency and ecological footprint standards.

People have been living in the cave houses on this Italian hillside since the Neolithic era.

Southern Italy's spinning top village.

The sunlight passing through the opening of this huge cave system creates a magical effect.

One of the world's oldest working clocks is curiously missing the Zodiac sign of Libra.

Built to repay the sins of the father, this church is home to one of the most valuable works of Western art.

This artistic temple brings together multiple architecture styles, but is only an example of one.

The home of a neoclassical master is now a shrine to his chosen art style.