This giant wooden treehouse within a sprawling garden has its own eatery.

This enormous secondhand bookstore inside a Victorian train station sparked the "Keep Calm and Carry On" craze.

The sign at the garden gate reads: “These Plants Can Kill.”

This iconic 1,000-year-old medieval castle is a favorite of the film industry, most notably as the location for Hogwarts in Harry Potter.

In 1190 one of the worst anti-Semitic massacres of the Middle Ages took place in a wooden tower which previously occupied this site in York.

Semaphore saints, a golden dragon's head, and a stone carved with religious warnings all call this cathedral home.

This medieval church is not only notable for its architecture, but also its connection with LGBTQ+ history.

This historic Amsterdam bar used to accept sailor's monkeys as payment.

Remarkable medieval wall paintings decorate this 12th-century, dog-friendly church.

Legend says that Wade the Giant scooped up a handful of earth to throw at his wife, leaving behind this round valley.

A 12-foot-tall metal fisherman looks out over the promenade.

Both the World War II Allied Forces and NATO have used this modern bunker underneath Malta’s capital.

1,500 Commonwealth servicemen of World War II are buried or commemorated in this cemetery.

Estimated at over 1,000 years old, one of Malta's oldest trees serves as a living link to its ancient past.

Burial grounds for more than 1,000 bodies deep under the modern town of Rabat.

Valletta’s outdoor theatre stands within the ruins of a 19th-century opera house.

After 400 years of being closed to the public, this monastery's underground tunnels and secret garden are now a museum.

The floor of this spectacular Baroque sanctuary is covered in memento mori.

See Malta’s history through the recreation of scenes of torture using life-sized mannequins in a former medieval dungeon.

This unique building in the main square stands out among the city's typically Baroque architecture.

These purpose-built WWII air raid shelters, which run half a kilometer under the town of Mellieħa, are among the longest in Malta.

The best-preserved ancient theater in the world.

Dedicated to the 4th Baronet of Sledmere.

The phone booths in this English town have distinctly milky hues.