A wooden street sign is the last remnant of this 400-year-old alleyway.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

Come face to face with the ferocious visage of the serpent-headed mother goddess of the Aztecs.

These biodiverse university gardens form a green oasis amid the urban chaos of Mexico City.

The only castle in North America to ever house European sovereigns.

Part bookstore, part café, and part forest.

One of the world's tallest statues is also one of its most hated.

Moscow's imposing monument to the Space Age.

Thanks to a spelling mistake this bizarre beaver-tiger hybrid became the symbol of a Siberian town.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

Moscow's other, lesser known kremlin is a fairytale-like cultural complex modeled after Old Russia.

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

This historic hotel invented the chocolate brownie.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

Khmer Rouge's high security prison.

This French colonial post office is arguably the grandest in all of Southeast Asia.

Witnesses claim the Virgin Mary statue outside the church once mysteriously shed a single tear.

Meant to be a lavish presidential home, the palace became a symbol of the fall of South Vietnam.

A patch of Philippines forest devoted to saving the lives of an emotionally sensitive species of googly-eyed primates.

Bohol's mysterious brown hills.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

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

There aren't too many operational funiculars around, but Pittsburgh has two!

Found art has transformed this Pittsburgh neighborhood into a psychedelic dream.