The location of this historic castle was inspired by a donkey.

A six-ton wedding present for the King of the Scots.

The most loyal of little dogs, or a Victorian era publicity stunt?

This single-track road rewards brave drivers with stunning Scottish scenery.

This otherwise ordinary close on the Royal Mile constituted the end of the world for Edinburgh’s poorest residents.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

The oldest continuously occupied public building in the United States.

This high desert botanical garden is a unique display of New Mexico’s ecology and culture.

Life-sized sculpture of a blue whale made of hand-recycled plastic trash.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

The yawning maw of this pagan visage is said to bite off the hands of liars.

Artifacts of whaling, with both its perils and adventure, are housed in this museum in a former candle factory.

A natural formation that resembles a camel resting in the New Mexico desert.

This stone tower was built to protect Crete from incoming pirates.

This collection of artifacts represents one family's mission to record the horrors of World War II inflicted on their hometown.

Every spring, locals see the shadowy figures of a ghost army of slain Greek soldiers descend upon this ruined fort.

Where commuters walk through remnants of an ancient Greek necropolis.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

A lush indoor jungle fills this bustling Madrid transportation hub.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

If all members were present at the table, a sixth of the world's wealth would be under the same roof.

The ruins of an open-air theater built on this Georgia island in the 1970s.