The skulls and bones of thousands of soldiers line the walls of this small Italian chapel.

These expertly crafted, scientifically accurate glass sea creatures were once an international phenomenon.

A 19th-century shrine covered with prosthetic body parts as votive offerings.

Records of the dead describe the myriad odd ways people used to die.

This beautifully deceptive waterfall is something far different from what it appears to be.

The stoutest tree in the world.

Frida Kahlo's childhood home, now a museum of her life and works.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

The ruins of an ancient city built by Mayan traders is centered around a temple of a sacred feathered serpent deity.

Concrete construction materials turned into a fashionable capsule hotel in rural Mexico.

Southern Mexico under the influence of mushrooms, ceremony and celebrity.

Oldest existing church in New York and the inspiration for Washington Irving's "The Legend of Sleepy Hollow."

Gift shop offering toe tags and chalk body beach towels tucked into a coroner's office.

Local legend has it that an old, decaying staircase outside this cemetery is haunted by dozens of ghosts.

The final resting place for the remains of 143 Habsburg royalty.

Collection dedicated to funeral rites, equipment, and mourning rituals of the Viennese.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

137 graves holding New England's earliest residents.

A colorful Peruvian city of the dead.

Mysterious painted skulls in Moravia.

An extraordinary final resting place full of oversized art, amazing statues, and dead celebrities.

The macabre collection of Jacques Sirgent, an expert scholar on the undead and all of their trappings.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

An 18th century monument regularly tagged with unsettling graffiti referencing a 1940s unsolved murder.