Booksellers and public artworks fill this vibrant promenade along the disused railroad tracks.

The headquarters of Korea’s provisional government later became the site of a prominent statesman's assassination.

The 400-year-old remains of the samurai invasion of Korea.

A local prank turned town icon.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

Honorable ranks graduating from the prestigious Army War College work hard to maintain their high standards of honor and erase those who don't.

Willy Wonka would love this weird half-a-home.

A tunnel that brings more than a century of history to life from the deepest parts of the Niagara Gorge.

This virtually windowless mass of smooth concrete is the only Catholic church in the city.

Artists made this mosque into a marvel of Ottoman baroque architecture.

A historical puzzle lies at the origins of this structure.

Nikola Tesla's ashes are held in a golden sphere, surrounded by his works.

This building has two facades of clashing architectural designs.

A vast Communist-era exhibition space in the Bulgarian capital.

A futuristic, brutalist masterpiece that is also strangely prison-like.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

A wunderkammer of gold and silver reliquaries and ancient saintly bones.

Inat Kuća, or "House of Spite," is more than just an oddly named restaurant.

This historic timepiece is thought to be the only public clock in the world that keeps lunar time.

Old ships and machinery fill a historic harbor in the city that's home to Europe's largest port.

Rumored to have been frequented by Vincent van Gogh, it's the only remaining genever producer in the Hague.

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

Amsterdam's former hotspot for public executions and dissections.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.