Press 1 for knock-knock jokes.

This unique museum cafeteria showcases the history and regional diversity of African American cuisine.

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

Sit where JFK proposed to Jackie or where Nixon dined on meatloaf at this storied pub.

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

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

Government testing at the asylum briefly explored using marijuana as a "truth serum" on Nazi prisoners of war.

The oldest continuously operating fish market in the United States.

An Industrial Revolution-era public work that purified water using nothing but sand.

A derelict bit of transportation infrastructure hidden in the woods.

This grand gothic brewery has been pumping out suds for over a hundred years.

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

With over 100 jam-packed rooms to explore plus elaborate tea services and events, the Mansion on O Street is a hidden treasure.

Home to items never before seen by the public.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

A historic jail preserves etchings from over a century of incarcerated people in a town with a rough and tumble past.

This 1930s log cabin began as a taxidermy museum but is now a popular country music venue.

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

Some of Arizona's best spit-roasted tacos al pastor can be found at a weekend swap meet.

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

One of the oldest Mexican restaurants in the United States air-dries its trademark beef in a dangling outdoor cage.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.

Hike, ski, or snowshoe to a backcountry yurt that serves up gourmet, four-course dinners.