Beautiful steampunk ghosts of early Massachusetts.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

A building so large that it has its own weather.

After the attack on Pearl Harbor, rocks and fossils from every U.S. state were collected into a pyramid of national unity.

A museum preserving one company’s history of preserving food.

The controversial urban planner who designed Washington, D.C., was buried in Maryland, and can presently be found in Virginia.

This lovely picnic spot featuring thunderous jet landings is an aircraft spotter’s dream.

Soldiers were buried next to Lee's house in the center of Arlington Cemetery to dissuade the general from reclaiming his property after the war.

Furniture tries to escape an abandoned building in San Francisco.

Once the largest windmill outside of Holland, with enormous 114 foot sails.

The giant pair of sexy legs sticking out the window of this costume store have become its main draw.

Golden Gate Park's historic collection of plants.

This private residence was the template for one of the most beloved television homes of all time.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

This shop specializes in oddities and Victorian-inspired wonders.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

The only statue of its kind to commemorate Washington's beginnings as an officer of the British Colonial Militia.

This Delaware River bridge is emblazoned with a catty slogan from a more prosperous time.

This huge, disused viaduct is now a crumbling concrete underworld of covered in years of graffiti.

Yo, Adrian!