An unassuming, powerful monument north of the U.S. Capitol bears witness to the resilience of Japanese Americans during a time of grave injustice.

Legend has it that President Grant’s frequent drinking in the lobby gave rise to the term “lobbyist.”

A traveling postal dog covered 48 states and more than 140,000 miles, and he lives on as taxidermy, patched up with a rabbit's foot and a pig's ear.

Washington's iconic carousel has a nice piece of Civil Rights history.

Decades before the scandal, this staircase on the river was a literal "water gate."

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

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.

The site of the climactic scene from the classic horror film is now a historic landmark.

At this former Prohibition speakeasy, electric birds signaled the arrival of hooch.

One artist’s scheme to expand museum viewing hours into the evening led to the illumination of an entire city.

Once America's tallest structure, now a Baltimore landmark.

An eerie, abandoned military base engulfed by nature and graffiti is now home to a local park.

A 200-year-old bar with a cheeky name claims to have served Edgar Allan Poe his final drink.

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

The trials and tribulations of marking Poe's grave.

A crumbling hospital from the 1850s on Roosevelt Island.

Volunteer-run library dedicated to exploring five decades of activism history.

A terrific purveyor of natural history objects and curios.

This 1960s kinetic artwork has been restored and is once again whirling away in downtown Minneapolis.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

This impressive Boston holy house is the American mecca for Christian scientists.