The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

The final resting place of the poets Shelley and Keats.

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

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

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

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

A fairy tale castle in modern Rome.

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

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

The yawning maw of this pagan visage is said to bite off the hands of liars.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

Thanks to a spelling mistake this bizarre beaver-tiger hybrid became the symbol of a Siberian town.

A little sculpture with a large wardrobe.

Lavish royal estate punctuated with heated greenhouses.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

A tiny park off the beaten path covered in ingenious scrap metal sculptures.

The world's largest clay lick, where parrots gather to snack.

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

If you’ve ever seen a picture of Machu Picchu, then you’ve seen a picture of Huayna Picchu—you just didn’t realize it.

The highest point in South Dakota contains the ashes of Valentine McGillycuudy, the "Holy White Man."

There aren't too many operational funiculars around, but Pittsburgh has two!

Now containing the bones of the actual conquistador, instead of someone else.

This stone complex marks the urban center of a lost civilization.