One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

In one of the smallest countries in the world stands an original Salvador Dalí sculpture.

A massive, gleaming sea turtle with a rider atop its shell looks out over the horizon.

Theme park featuring miniature replicas of European monuments.

The bronzed skull of a beheaded traitor was affixed to the city gate in the 17th century.

The tallest mountain in mainland Netherlands isn't actually very tall.

A beautiful maze marks where three countries meet.

The compass on its front was a handy tool for 17th-century merchants who needed to know the direction of the wind.

You can spot this teeny tiny stained-glass window from the Bonifacius bridge.

A shining memorial to a Belgian hero is said to bring luck to anyone who touches it.

This whimsical statue dumps water on its head to symbolize knowledge flowing into his brain. Or maybe booze.

This small corner bar is home to a rare 1930s dance organ that still plays tunes for one Euro.

An astounding collection of taxidermy, fossils, skeletons, and even a few strange live beasts.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

One of many reminders of Tesla's scientific contributions overlooks the falls which inspired him.

The site of Paul Revere's historic two lantern warning.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

The walls of the iconic dome are hollow and have a secret stairway.

An overlooked memorial honoring the local Washington residents who died in World War I.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.