This 1920s Dutch barge is now a floating bookstore.

In the heart of Tirana, this underground nuclear bunker has been transformed into a museum.

A series of stained glass artworks that depict images of the hit TV show.

The largest public library in the United Kingdom was designed to reflect the industrial and artistic history of the city where it stands.

The little-known second castle that William the Conqueror built in York.

A stained-glass window from the 15th century offers a vision of the end of the world.

Makers and sellers of the original and finest York Ghosts.

A shrine to one of England's female saints in what is believed to be her former home.

This memorial to World War II's fallen airmen shows us the movements of the stars that once guided them.

Semaphore saints, a golden dragon's head, and a stone carved with religious warnings all call this cathedral home.

An incredibly well-preserved piece of ninth-century Viking poop.

A Reformation-era fiery figurehead once denoted this location as a print shop.

This popular square's history as the former site of a church is right beneath your feet.

Harry Potter’s Hogsmeade Station is also a charming blast from the past situated in North Yorkshire.

Legend says squeezing into this slender stone seat will make your wish come true.

This historic castle was already in ruins by the 13th century.

The recreated ruins of a house designed to memorialize a World War I shelling on the town.

A century-old tradition has culminated in a small but singular collection of feline effigies.

A small museum built by a family that survived the Siege of Sarajevo.

This tiny traditional smokehouse is the only one left in this historic fishing port.

A monument to the real explorer and bear who inspired characters in Philip Pullman's 'His Dark Materials.'

These carved, weathered stones once gave mail carriers and pub goers a leg up.

This Ottoman bridge is a rare covered bridge with shops, and considers itself the only bazaar bridge in the world.

This crumbling medieval basilica once attracted pilgrims by the thousands to collect a miraculous dust that formed above the saint's tomb.