Washington's iconic carousel has a nice piece of Civil Rights history.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A monument celebrating the idea of reaching inaccessible places.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

Elevated freight railway turned wildly successful urban park.

The collection of 80+ pieces created between the years 1100 and 1500 is intended to be seen, heard, smelled, touched, and tasted.

A "sinister, whimsical, tacky, and really orange" public art installation hidden under a Seattle bridge.

Look closely and you’ll notice that the color changes a third of the way up the tower.

St. Augustine's record-setting narrow street was designed to protect against pirates.

A luxuriant botanical garden below sea level.

It's a pretty creepy lock-up.

A Norwegian-born sculptor created these soaring guardian angels at the entrance to Hoover Dam.

A lion given to the prime minister somehow got stuffed and sent to Florida.

This working class sculpture pounds his hammer all the livelong day.

A display of magnificent stained glass windows is the first exhibit of its kind.

A bas relief commemorates the "Nuns of the Battlefield" who cared for soldiers on both sides of the conflict.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

An exotic wildlife habitat right off The Strip.

Ruins of a Carnegie family mansion on Cumberland Island.

This legendary "evil" doll has been haunting the citizens of Key West for over 100 years.

A tribute to Ponce de Leon's supposed quest for eternal youth.