A boat slowly sinking into the Essex mud flats bearing the names of the disappeared that haunt the Thames Estuary.

The remains of a deserted 1800s farming community can be found in Little River State Park.

A beautiful, creepy 19th-century castle stands incongruous in rural Vermont.

An old abandoned mining town in The Adirondacks where Theodore Roosevelt first learned of the shooting of President William McKinley.

This sandstone gorge in New York State's Adirondack Mountains is home to waterfalls, flumes, and more.

The graphite created here was used in the manufacturing of pencils.

The Aldie Gristmill was once the largest factory of its kind in Loudoun County.

A well-preserved quarry and six of eight continuous burning pot kilns used to make burnt lime and crushed stone are highlights of the self-guided walking tour in Fountain Rock Park.

Intricate, eye-catching, award-winning rubber sculptures liven up this Pennsylvania town.

This methodist cemetery is slowly receding into the wilderness along a Maryland highway.

The last remains of one of the oldest and largest oak trees in the United States calls this state park home.

The United States' oldest Episcopal church still in active use.

Sip colonial-era cocktails at this monthly recreation of a 1740 watering hole.

What began as an art installation is now the private drinkhaüs for a brewery's employees.

An outlandish shoe shaped house built by an eccentric millionaire.

A sacred collection of indigenous rock art.

The tombstone of the founder of the lost town of Ogletown is now stuck inside a traffic median.

A scenic fort on the harbor protected Philadelphia from an attack that never came.

A rare view of a preserved Victorian science museum.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

The oldest surviving botanic garden in the United States.

A beloved horticultural oasis on the grounds of a wealthy family's former estate.

This hidden gem of a garden has one of the only surviving Victorian ferneries in America.

Metal monsters made from repurposed materials lurk alongside this Pennsylvania road.