Legions of Roman soldiers bathed in this ancient spa complex under a Budapest transit station.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

All that remains of the only English cathedral destroyed in the Protestant Reformation.

A rare set of strings by famed instrument maker Antonio Stradivarius is on display in the Royal Palace.

This beautiful example of Victorian engineering is the oldest water-balanced funicular anywhere in the world.

Catacombs turned marketplace.

The old tradition of drying laundry on poles in the public green is still guaranteed by Glasgow city law.

A magnificent Victorian garden that brings the charm and style of old-time aristocracy to the 21st century public.

Every hour on the hour a naked heroine and her leering foil appear from this giant cuckoo clock.

A preserved block of timber buildings from the city's industrial era in the Middle Ages.

The last permanent exhibit dedicated to the Soviet leader.

One of its engravings is believed to be among the first representations of medical and surgical instruments.

“It has nae lugs!”

A scattered trail of street art adds a pop of color to the city's stark structures.

A remarkable lava formation encloses a line of Buddhist statues that can't be accurately counted, according to local mythology.

The elliptical citadel resisted the advance of the mighty Ottomans several times, thanks to the military prowess of the "Dragon of Albania."

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

The main gates have been locked since 1745 and will remain so until the Stuart Dynasty returns to the throne.

Once the fallout shelter of a dictator, this sprawling bunker is now a combined history museum and contemporary art gallery.

What happens when you cross a mayor and a painter?

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

Hundreds of thousands of concrete bunkers crowd Albania long after the fall of Communism.