This tiny square mile of Canadian sand was once considered the world's smallest desert.

An abandoned whaling station on an active volcano offers hot springs in Antarctica, surrounded by ruined giants of industry.

The grotto where Saint Ignatius of Loyola lived as a hermit for nearly a year.

The world's most famous donkey lives in this pen.

The Italian revolutionary's legendary wife is portrayed on horseback waving a gun and holding her child in this memorial on the Janiculum.

This stunning sea creature-shaped home blends into the landscape like a fantasy villa.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

Sacks of potatoes, made of cast stone, mark where the iconic potato sheds once stood along the river.

A wealth of local folk art, antiques, and curios, without ever leaving your car.

A 2,000-ton rock resting in a state of a delicate balance.

The second-longest continuous wall on the planet protects a hidden secret in the deserts of India.

European castle ruins in an American state park are actually the product of death and grief.

Water of undetermined depth has attracted rare fish and cult leaders alike.

This house turned museum chronicles the life and work of Richard Neutra.

A forsaken wonder in the middle of the East Side neighborhood.

These egg-shaped buildings constructed by Jesuits house a quaint museum in the Andes.

Behind a modern brick exterior lies the oldest continuously-operating lunch-car diner in the United States.

Propped high atop the peak of Mount Gamsutlmeer, this abandoned village is one of the oldest settlements in the region.

This gaping hole in the middle of a remote mountain lake looks like a portal to another dimension.

One of the most acclaimed eateries in Arkansas is a two-table diner on the ground floor of a family home.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

Over 100 concrete munitions bunkers are all that remain of a Pennsylvanian village seized by the US government.

This ancient walled garden turns fog into food.