This hilltop park offers magnificent views and a Frank Lloyd Wright masterpiece.

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

Most famous work of one of Frank Lloyd Wright's sons.

This architectural triumph is the only Frank Lloyd Wright house in Alabama.

The famed architect designed this Minnesota gas station of the future with a lookout tower.

Fascinating exhibits of prehistoric and ancient artifacts displayed with a uniquely modern touch.

Discover the magic in the mundane in Iceland's Museum of Everyday Life.

The US Navy's only submarine museum is also home to the world's first nuclear submarine.

With some 500,000 books across five buildings, this bookstore is a reader's paradise.

The world's largest indoor go-kart racetrack is hiding in Connecticut.

Take a monster truck tour around an ostrich farm in the middle of the desert.

The headquarters in Salem doubles as an occult art gallery.

While not recognized by Guinness, this chocolate waterfall is likely to be the world's largest.

A suburban street in Anchorage doubles as a runway, and each home has its own airplane hangar.

Life-size bronzes of the Grinch, Cat in the Hat, Yertle the Turtle, Sam-I-Am, and the Lorax—and the author himself.

An old spiral fire escape dangles above a public courtyard in Midtown Oklahoma City.

This Seattle joint serves food inside an old train car once used by FDR.

In the mid-19th century, an eight-sided house was the latest fad.

The first presidential bomb shelter was located in an old vault under the Treasury, connected to the White House via tunnel.

Washington's top-secret Cold War-era doomsday communications tower is located in a small neighborhood park.

A nostalgic bibliographic gem.

A farm in New Jersey grew a most unusual crop for AT&T's testing purposes.

Destructive children, start your engines.

The traditional Polish croissant, folded 81 times into the shape of a horseshoe, is a legally protected cultural treat.