Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

The middle finger of modernity.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

Secret refuge and museum of the Duke of Florence.

Prone to disastrous fires, the city of San Francisco has the Guardian, a fireboat gifted by residents, to watch over them from the bay.

Alleyway plaque commemorating the death of a fictional character in The Maltese Falcon, not far from the author's home.

A small Portuguese cottage formed between boulders in the countryside.

Ancient catacombs form the foundation for this Rococo orgy of a church.

Houses are tucked between, on, and underneath giant boulders.

This star-shaped military outpost is now simply trying to protect itself from neglect.

A neolithic tomb converted into a tiny chapel.

Pagan monument converted to Christianity with the population.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

A whimsical antique shop with a strong air of mystery, filled with items from ages, and what feels like worlds, past.

This shop specializes in oddities and Victorian-inspired wonders.

An invitation-only museum of items natural and bizarre, arcane and exotic.

This private residence was the template for one of the most beloved television homes of all time.

Early prototype for Frank Lloyd Wright's Guggenheim.

Nestled in the heart of San Francisco’s bustling Financial District stands a unique homage to the Mayan and Beaux Arts.

Reverend Franzo Wayne King administers spiritual enlightenment through the music of the jazz legend.

Furniture tries to escape an abandoned building in San Francisco.