An abandoned 1970s theme park that has been turned into a space for waterfront walking.

This massive, ancient stone was disassembled and then put back together again.

This half-ton piece of the Alps sits at the base of the CN Tower.

The giant birds honor two native North American species.

One of the largest underground systems runs under Canada's largest urban center.

A collection of more than 12,000 shoes, displayed in a building shaped like a shoebox.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

Formerly the world's largest, this Willy Wonka-esque contraption runs 24/7.

The only way to see Pittsburgh is from the top of this lookout point, just like the ancient members of the native peoples did.

These unassuming lighthouses have seen the first reading of the Pledge of Allegiance, the first wireless transmission, and more than one mystery.

North America's first frozen mummified remains of an ice age steppe bison, the 36,000 year-old mummy named "Blue Babe."

The collection includes seven one-of-a-kind automobiles, vintage fashion, and more.

A hulking remnant of Alaska's industrial gold mining boom in the 1920s.

The sculpture's largest spire points directly toward the North Star.

This frozen tunnel in central Alaska is both an engineering feat and a valuable climate classroom.

This gravelly, dangerous highway is the only road in the United States that leads to the Arctic Ocean.

The northernmost truck stop in the United States.

The stickered marker pinpoints where the only maintained road in the United States crosses into the polar region.

Mind-blowing carvings and fantasy ice scenes grace the largest year-round ice environment in the world.

A striking 12th-century-style castle built on the edge of a cliff.

An Iron Age hillfort rooted in Arthurian legend was made famous by musician Peter Gabriel.

This memorial to World War II's fallen airmen shows us the movements of the stars that once guided them.

Follow the original medieval paths that wind through this intriguing section of the city.

From Nunavut to Tierra del Fuego, you won't find any lighthouse higher than this one.