The 28,000-year-old specimen is remarkably intact.

The National Park Service’s best-kept secret with views that rival any in D.C.

The most decorated dog of World War I is preserved in the Smithsonian.

A heroic pigeon that, through a barrage of gunfire, delivered a message that saved over 100 lives in World War I.

Giftshop catering to cryptozoologists and anyone with a sense of humor.

The world's oldest soul food restaurant is also one of its best.

The span is crooked and made from two older recycled bridges.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

The hidden offices underneath Memorial Bridge have been locked up since 1976.

The first purpose-built art gallery in the United States is once again open as a center of craft arts.

This restaurant has been a haven for D.C.'s LGBTQ community since the 1950s.

For 60 years, the academy had no permanent location until members voted Washington D.C. as its forever home.

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

This public space is speckled with the eerie remnants of a defunct amusement park.

A macabre farm reserved part of its 222-acres for dead bodies, all in the name of science.

One man's real life disfigurement inspired a lasting local legend surrounding an eerie tunnel.

A unique workspace where offices reside on pirate ships and inside gingerbread houses.

House of vintage taxidermy and Steampunk sculptures in a quiet Pittsburgh neighborhood.

These disused steel furnaces are now haunting ruins that may one day be a national park.

Mutant vegetables, transgenic mosquitos, and atomic rodents span the walls of this one-of-a-kind museum.

This restaurant offers a side of antiques, curios, and a bathroom chock full of owls.

A beautiful oddities shop crammed with strange and morbid curiosities.

This shop filled with oddities and knick-knacks is named for a 19th-century charlatan.

An abandoned incline railway site is now a green space with six acres of trails connecting hilltop neighborhoods.