The famous polar explorer stands outside the Royal Geographical Society's headquarters.

Famously misunderstood wonder of the ancient world

The oldest working mechanical clock in the world.

This gate served as a small lock-up jail in the 14th century.

A life-size replica of a Spitfire that sits in a quaint suburb.

This modest relic, with rich history as a strategic fort through multiple eras.

This restaurant's specialty is "a major enigma for food historians."

A hidden three-foot-wide house separates these two regal churches.

Building owners can take out tiles for free at this repository for historic building materials.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

The same water that fills a luxury resort’s pools feeds these free hot springs in the rainforest.

Sloth rehabilitation center in the jungle of Costa Rica.

The sister plane of the C-123 shot down during the Iran-Contra Affair has found a new purpose in retirement.

This abandoned hospital is one of the most haunted places in Costa Rica.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

The corpse bride of Portugal.

A deer-headed statue that brings together a 12th-century legend and big wave surfing.

A majestic hotel for dreamers rises from the center of a fairytale wood.

This giant sculpture made of trash is a critique of society's wastefulness.

Elaborate tile work in this railway station tells the story of Portugal.

This museum was invented in a novel before being made real by the author.

The deepest underground city in Turkey was designed to protect 20,000 people behind massive stone doors.

An abandoned church gets a second life as a massive beer hall and event space.