The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

A motel dedicated to Southwestern nostalgia.

This reclusive Hopi village in Arizona has been continuously populated longer than anywhere else in America.

A working cattle ranch with remarkably well-preserved prehistoric petroglyphs and ancient ruins.

For those going through a life transition, a place to leave behind a piece of your former self.

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

The Habsburgs' royal collections of art and wonders.

This statue of a falling man commemorates a teenage martyr of the Hungarian Revolution.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

A 19th century artistocrat's mansion, turned into a library, hidden in a modern library.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

The resting place for anonymous victims of the Danube's dark waters.

Apartment complexes built into huge repurposed natural gas tanks.

Op-art architecture designed for happiness.

This cubist Vienna church building looks like some sort of alien stonehenge.

A neo-Gothic church built to thank God for saving the Emperor of Austria from an assassination.

Walk through Czech history in Prague's largest graveyard.

A Jenga-style cylindrical tower of books that appears to go on forever.

The beautiful baroque library of the Hapsburg empire.

Beautiful Austrian natural history museum with carved ceilings and row after row of ancient taxidermy.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

Home to 23 voluptuous and instantly lovable sculptures by one of Latin America's most celebrated artists.

Two identical statues by Fernando Botero, one blown to pieces in a terrorist bombing, the other donated as a gift for peace.