This historic square in Nepal is home to temples dating back to the third century.

The most confusing clock in New York.

Go inside to really appreciate this 500-year-old technological masterpiece.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

The celebrated eyesore created by starry-eyed sweethearts.

Legend tells how a Spanish soldier disappeared from this isolated sentry box without a trace.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

A stupa built to protect Bhutan from evil forces and help bring peace to the world.

The nation’s first institution dedicated to the conservation of Bhutanese textiles.

One of Bhutan's oldest temples was purportedly built to stop a giant female ogre from preventing the spread of Buddhism across Tibet.

This unusual monument shows a naked Simón Bolívar stripped of clothing, medals, and swords.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

Towering at a height of over 30 meters, this turn-of-the-18th-century landmark is the tallest temple in Nepal.

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

This demon atop the Notre-Dame de Paris looks utterly bored.

This elaborate towering structure was once famed for its revolutionary height.

Yo, Adrian!

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

Huge masonic hall in Philadelphia with lavishly themed rooms.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

The world’s first penitentiary, meant to be humane, drove men insane.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

The Indian capital of black magic and witchcraft.