This historic motel standing at the "crossroads of America" offers a radio in every room and was saved by local protesters.

Aged nearly 1,700 years, the world's oldest bottle of wine is probably still drinkable.

The block of aged dairy is probably still edible after 2,300 years in a peat bog.

A hidden grotto on the grounds of the Kane County Government Center.

This cemetery is all that remains of a school for "wayward" girls.

Slather on the history at an exhibition dedicated to this Russian luxury.

Peanut butter trees and miracle berries are just the beginning.

L.A.'s oldest operating bowling alley is a beautifully restored homage to its speakeasy days.

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

The sole surviving relic of the San Francisco neighborhood cobbled together from old horsecars and streetcars.

A partial tunnel blasted into a steep ridge is all that remains of a failed railway across Arizona.

Collapsing castle on the Hudson river was once the storage site of military surplus business.

The remains of what was once the world's steepest passenger funicular.

A series of 33 stone markers maps an ancient 55-mile transportation route.

A huge Megalithic chamber tomb located behind a cafe.

Guests can stay at a hotel in the former French abbey where lie the tombs of King Henry II and King Richard the Lionheart.

Ivy-covered Medieval tunnels cut through this charming town in France's Loire Valley.

An enormous, inside-out glass globe built in 1935.

For over 40 years, this quaint little house has teetered on a rock in the middle of a river.

An abandoned monument remembering the "Pančevo Holocaust" now stands as a shadow of its former self.

An iconic and eccentric bar for "Manouche" Jazz music keeps expanding its space—and its influence.

This gigantic monument hidden in the woods was built to thank the Dutch for sheltering Belgian refugees during World War I.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

The abandoned mine where American troops discovered a treasure trove of art and artifacts hidden by the Nazis.