The oldest licensed distillery in Ireland.

A steam trawler with a whiskey-soaked history driven ashore in 1960 resides rusty but still standing on the shoreline.

The Grand Lodge of Ireland is one of the oldest in the world, full of fantastical, elaborately themed rooms.

One of Ireland's most infamous prisons for rebels including men, women and children.

An Irish church where an 800-year-old mummy is reaching out of his coffin as if to shake hands.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

One of Edinburgh's oldest pubs hides a 19th-century skittles alley in the back.

A collection of grotesques lines the walls of this Italian villa.

It's rumored this unique Baltic beacon was designed by Gustave Eiffel himself.

First point in the Struve Geodetic Arc, a 19th century undertaking to measure the Earth's size and shape.

A historic scientific breakthrough that crosses nine borders.

This soviet pilot's graveyard is filled with headstones made of airplane fins.

Rusted cars, trucks, and buses form a fascinating collection of Soviet-era machinery.

Wars fought and wars won are remembered by these abandoned bunker ruins.

This medieval Estonian tower provides access to a series of tunnels that have been home to soldiers, punks, and fine art.

This Soviet-era "closed town" was a top secret uranium producer often left off of maps.

Estonia's largest creative city is a vibrant bohemian hub located within a former industrial complex.

Italian cave with exceptional acoustics and an unsavory history.

Built on a medieval synagogue, this church has a burial crypt, tunnel system, and Jewish ritual bath hiding deep underneath.

360° views of the city plus five floors of optical illusions and hands-on science.

This small-town pizzeria won the Hollywood lottery.

An iconic steel and chrome diner from the 1940s left empty for nearly 20 years is in danger of being demolished.

While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

Stalactites and stalagmites in a beautifully lit cave.