Hundreds of lucky felines haunt the ruins where Caesar was murdered.

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.

The final resting place of the poets Shelley and Keats.

Kentucky's longest operating jail is now a spooky spot to spend the night.

Here be dragons.

This interactive gallery makes you feel like you've stepped into a fantasy world filled with whimsical monsters.

In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

This collection started by a Cornell professor once held more than 600 human brain specimens, including the one that belonged to its founder.

A six-story treehouse offers spectacular views of New York's Finger Lakes region.

Entering this curiosity shop is like stepping into a mad scientist's lab.

In the middle of a remote desert town is a surprisingly opulent hotel.

Spend a day hanging out with domesticated Russian foxes.

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Medicinal spa created with the discharge from a geothermal energy plant.

Thailand's distressed elephants find peace at this Chiang Mai sanctuary.

This ancient Roman prison is decorated with an upside-down cross not as blasphemy but as saintly tribute.

This off-beat, quirky communism-themed bar isn't afraid to poke fun at its history.

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.

A program of Communist glamour in post-Stalin Poland is preserved in this colorful museum.

Twelve hundred stone carvings guard this off-the-beaten-path Buddhist temple.

This Neapolitan exhibition hall grants weird and wonderful insight into the intricacies of human biology.

The tallest statue in the world is twice the height of the Statue of Liberty.

Tombstones and enigmatic inscriptions hide within a vault beneath a popular London arts venue.