This giant trout was made by a singular fisherman who wanted to honor his local trade.

This southwestern historic site was designed and built by an artist who wanted his work to "feel at home."

Go deep down into the earth to experience the world of Welsh coal miners.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

This scenic Maryland park was the site of one of the worst prison camps of the Civil War.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

After a short-lived attempt to bring America in line with the rest of the world, this road was left in metric.

A benevolent, 16-foot-tall river dragon lives on a suburban lawn.

This precariously balanced boulder is said to be a hunk of stolen butter dropped by the gods.

A pre-Industrial Age iron furnace and the site of a nearly-forgotten piece of Black history.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

Limestone caves with spectacular showcase chambers.

A reproduction of earth's many biomes.

America's only nuclear missile silo open to the public.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

What is the Thing?

The century-old bell and clock tower at UC Berkeley is the third-tallest in the world, and has fossils.

A surviving remnant of the thick ice mass that once mantled most of Western Canada's mountains.

A white oak with property rights.

After just one epic test blast, this literal loose cannon proved too explosive for combat.

Swiss vineyards in a UNESCO heritage site.