A lonely memorial to the Challenger Space Shuttle, honoring the astronauts who died in 1986.

This charming woodland trail is peppered with poetry.

This 38-drawer structure claims the superlative title, but it isn't the world's only giant filing cabinet.

The tennis legend used this racket while breaking the race barrier and becoming the first Black man to win the US Open.

An ode to Japanese artist Hokusai, with a bit of a comical twist.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

A museum designed by and dedicated to P.T. Barnum in the town where he is buried.

An Escher-inspired library dedicated to the wonders of the human mind, yet closed to the public.

Though his role as the inventor of baseball may be up for debate, fans still festoon Doubleday's grave with baseballs.

This cannon dating to 1755 has stood guard at this suburban intersection since 1915.

A throwback to 1980's gaming nostalgia.

Developed by focused shutterbugs, this museum exposes visitors to more than 6,000 different cameras.

The only recreation of William Shakespeare's indoor playhouse.

Inspired by a foil-wrapped potato, (seriously) the Markel Building has been deemed one of the 10 ugliest buildings in the world.

Bubbling up from deep underground is the warm crystal clear water that fills the Warm Springs Pools, America's oldest spa.

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

The actor best known for slapstick comedy is memorialized in his home town.

This university transit system is a 1970's vision of the future.

Berkeley Hot Springs presents to you "the only outdoor monument to presidential bathing."

First a root beer ad, then a golf course clubhouse, and finally a massive teapot.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

Proto-CIA agents trained with grenades in the sand traps and fired machine guns from the fairways.

A total of 14 men held the title of "president" before George Washington—their historical legacies are enshrined in the lobby of a hotel.

The final resting place of the tragic king and queen of the Jazz Age is tucked away in a small Maryland graveyard.