The first piece of public art dedicated to LGBT rights.

A curious collection dedicated to human and animal anatomy and pathology.

On the Hudson resides one of the largest clocks in the world.

This unassuming retro burger joint was billed as “diner of the future” at the 1939 World's Fair.

A little sculpture with a large wardrobe.

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

Climb inside an iron crystal magnified 165 billion times its normal size.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

France's most famous cemetery, with some of its most curious tombs.

The bronze uniforms commemorate the vital role of women during World War II.

The remains of a grand castle that may have inspired Bram Stoker's Dracula.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

A 19th-century architectural wonder designed by the "father of the skyscraper."

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.

The most powerful laboratory radiation source in the world pulses with 1,000 times the electricity of a lightning bolt.

Look closely and you’ll notice that the color changes a third of the way up the tower.

This whimsical campus lawn is dotted with large sculpted numbers and hidden mathematical formulas.

World's largest Christmas store.

The world's largest anatomically accurate brain sculpture.

Former self-sufficient mental institution now a planned community.

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

An unusual, super-sized grocery adventure awaits in an Ohio suburb.

A subterranean world of tunnels links several buildings of this rare 19th-century asylum.