A stunning 18th-century site where pilgrims ascend by a series of punishing stairs only to return via funicular.

This castle has links to Portugal’s founding and struggles for independence.

This charming, medieval walled village is Spain's first "book town."

The former home of a conniving 17th century politician is now a high-end hotel.

This Arab fortress was once the largest citadel in Western Europe.

Originally used to sell brandy, the bull-shaped billboard became an iconic symbol of Spain.

Take respite inside this jaw-dropping church while climbing the volcano where Georgia's Prometheus was once chained.

This architecturally eclectic fortress witnessed centuries of bloody turmoil, including the massacre of its ruling clan.

This little medieval church hidden in the center of Yerevan was lost and rediscovered—twice.

This medieval manuscript collection has some of the most obscure and ancient texts in the world.

The most visited pilgrimage site in Armenia once held a saint in a pit for 13 years.

Hundreds of intricately carved Armenian stone crosses can be found within this huge cemetery.

The modern birthplace of Irish freedom.

Experience what life was like in Ireland during the Viking and medieval ages.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Corn-inthian columns with a uniquely American take on neoclassical architecture.

A well-worn marker in a forgotten alleyway is all that remains of what had been one of Manhattan's most beautiful buildings.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

Based on a real event, the statue is dedicated to those who fought and died for Zambia's independence.

The abandoned tower is the last remnant of Lusaka's first major power plant.

The skull of an ancient hominid was discovered at this spot.

The 10,000 Torii shrine.

This neighborhood thoroughfare is haunted by dozens of homemade monsters.

Shrine dedicated to boars that is believed to cure foot and leg injuries.