This small cemetery remains hidden behind a recreation center.

This general store has stood in the same spot for well over a century.

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

A massive white oak tree provides a beautiful canopy near a suburban shopping center and stood before the signing of the Constitution.

The final resting place of the tragic king and queen of the Jazz Age is tucked away in a small Maryland graveyard.

Three abandoned missile silos are hiding in plain sight behind a suburban development in Maryland.

The shelves in the back of this thrift store are devoted to saving, not selling, retro tech.

Dogs, cats, horses, monkeys, frogs, and fish are laid to rest at the second-oldest pet cemetery in the U.S.

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

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

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

One of the oldest standing structures in Montgomery County, Maryland.

Proto-CIA agents trained with grenades in the sand traps and fired machine guns from the fairways.

This massive swimming pool is the high tech home to the human-powered submarine races.

This suburban house is made of dirt, and almost sparked a revolution in home construction.

The bridge's highly-contested plaque (once again) honors Confederate President Jefferson Davis.

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

Surrounded by traditional homes, this Tolkien-esque dwelling stands out on a quiet street in suburban Maryland.

She stares out across six lanes of traffic, clutching a musket and infant with determination.

The wooded estate of the Forest Service employee responsible for D.C.’s cherry blossom trees.

FDR's Art Deco hospital tower was hopelessly inefficient.

This mighty white oak in Bethesda survived both the American Revolution and the construction of Washington D.C.'s metro red line.

One of the largest collections of Catalan literature and cultural materials outside of Spain, created by a community of 1960s expats.

The headquarters of the Audubon Naturalist Society is a small slice of heaven for nature lovers.