The largest self-built castle in the U.S., six decades in the making.

British Empire's last territorial expansion, claimed by four countries.

A verdant 17th-century-style garden hidden along Edinburgh’s Royal Mile.

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

This tin chapel was built by POW's during World War II and is painted to look like something much more grand.

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

A castle in the Scottish Highlands has been continuously inhabited since the 1300s.

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

This Scottish manor house is a lush relic from the life of a literary great.

Possibly the oldest of Britain's ancient henges is also one of its most stark.

The final resting place of soldiers' loyal canine companions.

A small island abbey is the final resting place of many medieval Scottish monarchs, including the real Macbeth.

The biggest drug trafficking passage between Mexico and the U.S.

One nutty businessman’s unique tribute to an ancient tool.

Amazingly detailed marble cinerary urns that once held the cremains of Roman elite.

This beautiful grotto is one of those places where you can't believe you're just outside Austin.

The saga of the massive nut begins and ends in Texas.

These boots are made for selfies.

A gorgeous garden oasis with winding paths, stone bridges, and a troubling history.

Three hundred years of preserved Spanish colonial history in San Antonio.

A National Historic Landmark with a scenic clock tower and park filled with deer and peacocks, plus a military museum.

The summer home of the largest colony of bats in the world.

This failed condo development was reborn as a street art hub.

A store full of vintage and indie toys designed to bring out the kid in even the crustiest of adults.