This site commemorates the birthplace of the game of basketball, invented by James Naismith in the winter of 1891.

An oft-overlooked, magically musical monolith that stands majestically between Arlington Cemetery and the Iwo Jima Memorial.

A commemorative plaque hides a door that leads down to the New York Public Library's underground book bunker.

The final resting place of President Chester A. Arthur and hundreds of others from Revolutionary War soldiers to poets, politicians, and painters.

The 72-foot giant escaped confinement in a large patch of mulch only to be reburied in the sandy shores of the Potomac River.

Believed by many to be the oldest surviving public monument in the United States.

This smiling statue memorializes local cartoonist Bob Montana and his legendary creation.

This historic church with a connection to "Uncle Sam" is now a fraternity house.

Driftwood dinosaurs lurk within trees covered in a rainbow array of avian abodes.

Stand at the center of this lakefront sundial, and you'll become part of the timepiece.

Once thought to be the fabled Holy Grail, it is now known to be an oil lamp.

A giant toy jack made of numerous welded-together fire hydrants.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

The second oldest Jewish graveyard in the U.S. is tiny, with connections to George Washington and Henry Wadsworth Longfellow.

There's a 12-foot-tall replica of the Washington Monument hidden under a manhole nearby.

The sweetest graveyard in the world is filled with headstones for dearly de-pinted ice cream flavors.

The original Uncle Sam was actually a New York meatpacker who is buried under this historic grave.

This rare polygonal meeting house is rumored to be built in a circle so that the devil has nowhere to hide.

The largest arcade museum in the world chronicles the golden age of video games which ended promptly in 1987.

Mysterious stone tower featured in many alternative histories of the New World.

A massive sustainable farm designed by the mastermind behind Central Park.

An ancient cemetery with some historic bodies underfoot.

An artist's cute bronze subway sculptures belie his violent artistic past.