Craggy concrete faces are hidden in the walls of this artificial cave along the San Antonio River.

Two small markers remember the Alamo's feline protectors.

A 131-year-old wunderkammer of Texas history.

These boots are made for selfies.

Fort Garry was a pivotal post for the Hudson’s Bay Company and a major factor in the economy and political culture of the area.

More than 2,000 species of tropical plants call this nature preserve and sanctuary home.

The first transatlantic wireless signal was received at this 17th-century fort.

This small Newfoundland town has declared itself the “Root Cellar Capital of the World.”

A statue of the early navigator stands overlooking the land he first surveyed.

The last remains of the extinct Beothuk people native to the island of Newfoundland.

From this isolated strip of land in Newfoundland, Amelia Earhart became the first woman to fly solo across the Atlantic.

An old drug store full of mortars and pestles, pill-making machines, and medicines reputed to cure most any illness.

A memorial to a giant seabird that was hunted to extinction.

A forlorn fishing village on the coast of Labrador, full of shipwrecks and Spanish gold.

A chaotic collection of maritime artifacts, art, and really whatever else happens to be around.

An abandoned amusement park hints at the twisted history of the Newfoundland Railway.

This rocky spread has been squeezed up directly from the bowels of the earth.

An ancient Viking village in North America that predates Columbus by 500 years.

The haunting complex honors the millions of Ukrainians who died in the forced famine under Soviet rule.

A subterranean Holocaust refuge within one of the world's longest cave systems.

One of the most poignant ruins of the Chernobyl nuclear disaster, the local football team's stadium has been quickly reclaimed by nature.

A reconstructed medieval gateway that was the magnificent entrance to the capital city dating back to 1037.

The largest catacomb system in the world.

This attraction was abandoned after the Chernobyl disaster.