Stroll the grounds built by murder, suicide, and dirty oil money at one of Hollywood's most filmed mansions.

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

A 16th-century horror show built in a lovely Italian garden.

At the crypt of St. Mary of Eulogies and the Dead you are left alone to ponder mortality among piles of skulls.

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

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

A Nesting Doll of Churches.

Charles Dickens was not a fan of the ghastly wall dressings in this 6th century church.

Stone memorial that's said to predict the death of the pope and the site of the Cadaver Synod.

This semi-secret storybook hedge maze is also the oldest garden in the city.

A complex, nine-layer maze on the grounds of a Venetian doge's playground.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

100 year tradition of fist fights, marked by marble footsteps.

This abandoned island off the Venetian coast has been a radical monastery, a political prison, and a secret Nazi base.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

The hidden jewel of Disneyland: a members only playground for the Disney elite.

A wacky two-story folk-art assemblage of carved and found objects, with lights, motion, and sound now in need of financial support.

The famous animator's private station house and man-cave was the birthplace of imagineering.

This Oakland fairytale kingdom, fiercely devoted to childlike whimsy, was an early inspiration for Disneyland.

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

This sensational Chinese temple walks visitors through the 76 weird departments of the afterlife.

A pair of pure white felines guard the entrance to a spot of California real estate established as an artist's haven.

This golden temple is surrounded by hundreds of stone tablets that comprise the "world's largest book."