The U.S. Fish Commission’s effort to mass produce carp.

A tiny monument to the unsuccessful attempt by Thomas Jefferson to place the prime meridian in Washington.

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

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.

After miraculously surviving a giant flood, the 19th-century nut tree and its offspring are protected with their own tiny park.

While most of the games in this arcade take quarters, that would have been a small fortune when they were made.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

This is not your typical jungle gym.

The site where Poe “in great distress, and ... in need of immediate assistance” likely died.

The trials and tribulations of marking Poe’s grave.

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

Practice your Dirty Dancing lifts in the manmade lake where Johnny Castle himself did.

Comprehensive gaming collection of over 30,000 electronic games and consoles.

Touching mementoes from those who didn't make it back from World War I still hang in one of New York's oldest bars.

A collection of the best toys ever made inside a museum devoted to play.

"X" marks the spot of an echo chamber in the middle of a plaza.

One of Savannah's oldest and most haunted cemeteries, featuring graves desecrated by Sherman's Union Army.

The hometown of Popeye's creator is littered with a growing collection of granite cartoon characters.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

A mythical bird etched into the face of a rock doubles as the mascot for a nearby school.

400 million-year old limestone caverns nestled in the Ozarks served as shelter and a hideout for cultures throughout North American history.

After a water tower painting was accused of being an ad, a simple fix was made that gave the city a motto.