The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

The final resting place of the poets Shelley and Keats.

Architectural monsters are devouring this palace's every door and window.

The engineering wonder and pleasure dome of a much-maligned emperor still holds undiscovered secrets.

This strange statue features a bust of the famous composer plopped atop a woman's body.

These 12th-century catacombs carved into a mountainside were a place of mysticism and Christian hermitages.

Amidst medieval and baroque buildings, five human-sized gherkins stand tall.

Ugly 18th-century dwarf statues living in a perfectly landscaped Austrian garden.

Terrifically morbid cemetary and site of famous Paracelsus' grave.

Mozart's skull may be held in this collection, but definitive proof continues to elude scientists.

Fantastic views and thousands of love locks.

Something's watching you.

The walls of this small village have been turned into a living street art gallery.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

The graveyard is filled with beautiful funerary art and boasts breathtaking views of Florence.

The world's largest collection of garden gnomes lives among the trees and wildflowers on this woodland reserve.

A brisk climb up this solitary peak leads to the origin story of a towering figure in Irish history.

This remarkably intact, 260-year-old cargo ship is only visible at the lowest of spring tides.

This stately bank building hides a spectacular star-studded ceiling.

This repurposed church offers a more literal way to get closer to the heavens.

Giant statue of a disembodied head.

Legend has it the famous Robin Hood would attend mass at this 12th-century Cistercian abbey in Sherwood Forrest.