This giant middle finger statue sends an unambiguous message to Italy's bankers.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

Latvia's symbolic mountain-shaped national library is home to millions of cultural tomes.

A former Latvian headquarters of the brutal KGB secret police is now open as a grim reminder of their atrocities.

A preserved oak tree about 3,500 years old found in Riga, Latvia.

A vast and unlikely aviation museum kept alive for over 50 years due to one man's tenacity.

Revitalization efforts converted a former U.S. military heliport into a sprawling urban park.

This museum explores the history of the city's public transportation. Its collection includes the world's oldest preserved electric trolley car.

A medieval military street hidden beneath a charming French fishing village.

Nearly every wall in this French villa has been "tattooed" by artist Jean Cocteau and other famous painters.

A place to see how French aristocrats lived in the early 1900s.

A reconstruction of a classic mansion on the island of Delos was designed for a historian and archaeologist.

This mountain trail inspired Nietzsche to complete his magnum opus.

This statue of the great Argentinian car driver is located near a famous curve of the Monaco Grand Prix.

Museum celebrating the ocean, with the largest wunderkammer dedicated to sea exploration.

Twisted trees shaped by coastal winds make this woodland look like something from a spooky story.

A marble Lucifer hides behind the pulpit of this Gothic cathedral.

This 170-year-old Swiss guesthouse built into the side of a mountain is best accessed by a cable car.

The highest cold-water geyser in the world.

Centuries of warfare, tragedy, executions, and poetry come together in this 13th-century fortress.

Named after the German word for "a longingness to travel," this park brings together thousands of city and street signs from around the world.

Now overgrown, these anti-tank barriers from World War II are sometimes called "dragon's teeth."

No need to strap in for a "ride" on this walkable roller coaster.

This German art chapel is perfect for those who like their worship hard, modern, and utterly alien.