An ornate doorway leads to the former site of one of the city's oldest society of merchants.

Perhaps the most obscure, simplistic Banksy installation found in Bristol or in the entire world.

Picturesque basketball courts sheltered by historical defensive walls and with an enviable sea view.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

These colorful staircases can be found around Goa’s capital.

This Czar-funded, onion-domed, lavishly muraled Orthodox Church played a starring role in "The Deer Hunter."

In 1977, an eccentric book lover formed a micronation for book lovers.

Stroll through Welsh history in a village of reconstructed structures.

The only medieval bridge in Britain with its defensive tower still in tact.

This astronomical clock is the second oldest in England.

This Roman amphitheater is said to be King Arthur's legendary Round Table.

The "father of immunology" used this humble hut to offer the local people some of the world's first free vaccinations.

This well-preserved Cistercian Abbey in a romantic pastoral setting has inspired artists like the poet Wordsworth.

This medieval sanctuary's tree-framed door looks like a portal to a mythical realm.

A petite castle folly in the English countryside.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

New Hampshire's first neighborhood is now preserved as a historic village with live action role players.

A set of rowhouses built for laborers at a glass company are the last of their kind in Annapolis.

The final resting place of an unidentified revolutionary soldier sits behind a Virginia church.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

One of the two original gateways into the Kasbah, this gateway is a nesting site for storks.

This vast masterpiece of Moroccan architecture spreads across 20 acres.

Deliberately hidden for centuries, the magnificent Saadian Tombs were eventually uncovered in 1917.

The largest madrasa in Morocco once housed more than 900 students within its exquisite walls.