This abandoned Victorian-style house was built in 1884.

FDR's Art Deco hospital tower was hopelessly inefficient.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

A gift from Japan, 17th-century lantern stands among the cherry trees at D.C.'s Tidal Basin.

An overlooked memorial honoring the local Washington residents who died in World War I.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

These medicine cabinet staples are part of the museum's collection of everyday objects.

The world's third-largest crystal sphere has sat in the Penn Museum since 1927 with the exception of one outlandish theft.

Frank Lloyd Wright’s most iconic home dangles over a Pennsylvania waterfall.

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.

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

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

A lawn full of retired spacecraft on display at one of NASA's first research labs.

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

Hidden within an idyllic suburban garden is a memorial dedicated to the victims of a terrifying spree of killings committed on U.S. soil.

A Civil War Museum with some notable medical antiques.

The land is home to swimming ponies and a legendary 18th-century treasure.

A pre-Industrial Age iron furnace and the site of a nearly-forgotten piece of Black history.

An allegorical sculpture in Maryland wears the artist’s politics on its trunk.

A suburban museum tells the story of a historic transportation network and even provides rides in antique trolley cars.

An astounding collection of medical specimens, including bits of President Lincoln.

This propitious plastic porcine has been petitioning park visitors to pick up after themselves for more than 50 years.

A spectacular tribute to statesman and philanthropist Andrew Mellon.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.