The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

Sitting beneath an unremarkable residential building is a museum devoted to classic Pinball.

Museum dedicated to the terror regimes of Hungary.

Once the home of a hermetic monk, this cave now houses a small church.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.

The 28,000-year-old specimen is remarkably intact.

Look closely and you’ll notice that the color changes a third of the way up the tower.

While most wind tunnels test scale models, the "Cave of Winds" was large enough for actual airplanes.

Washington's iconic carousel has a nice piece of Civil Rights history.

The most accurate timepiece in the world.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

The site of the climactic scene from the classic horror film is now a historic landmark.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

The world's oldest bookshop still in operation.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

Elaborate tile work in this railway station tells the story of Portugal.

A hidden three-foot-wide house separates these two regal churches.