These ruins witnessed the final gathering of the failed Jacobite Rebellion.

This Funeral Hearse Museum represents the finest in cadaver transportation.

A quaint museum nestled in a former hub of Irish moss harvesting.

This ruin in a suburban park may be the place where Shakespeare's "A Midsummer Night's Dream" was first performed.

The castle still holds traces of the abandoned Roman fort it was built atop.

Strange beasts lurking in a garden are all that remain of a quirky, short-lived theme park.

This picturesque abandoned home is rumored to be a spite house.

Rusting away on the edge of New Jersey are the remains of a Cold War missile launch site.

This architectural stunner is one of the few surviving Egyptian Revival theaters in the U.S.

With its peeling paint and faded sign, this theater-turned-recycling plant is a nostalgic relic of 1950s Americana.

An eclectic collection of artifacts from the Wild West is preserved in a remote fictional pioneer town.

A beautiful collection of taxidermy birds and rare pomological wax models.

Gorgeous purple flowers drape from the world's largest blossoming plant.

The weathered grave of a medieval anchoress who walled herself up in a cell attached to a church.

Now abandoned, the first public health hospital in the U.S. saw more than one million immigrants from around the world.

A midcentury ranch house hides a literal treasure trove of unique rocks and minerals.

A quiet, gothic haven nestled between Pittsburgh's Squirrel Hill and Point Breeze neighborhoods.

A beautiful oddities shop crammed with strange and morbid curiosities.

A labyrinth of ancient tunnels hidden below the city holds the ruins of 2,500 years of history.

A spooky juxtaposition of caves and graves gives this legend-filled cemetery a particularly haunting vibe.

A medieval military street hidden beneath a charming French fishing village.

A remote horde of architectural treasures fit for Indiana Jones.

The oldest and smallest cemetery in Paris is only open to the public twice a year.

The 16th-century church was kept in its ruined state as a reminder of the casualties of World War I.