A small island less than half a mile from Venice is a forbidden island with a dark and twisted past.

The small peaceful island off the Venice tourist circuit is where the city began more than 1,500 years ago.

A community of collapsing homes more than a mile out from the Florida coast.

This small Roman arch was transformed into a dwelling by the founder of the Trinitarian Order.

One of Rome's most picturesque and original bridges was also a popular choice for Grand Tour artists.

An abandoned 17th-century baroque hunting lodge with a wonderfully strange architectural plan.

A massive marble foot is tucked away in a small alley near the Pantheon.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

The best preserved Paleochristian basilica in Rome hides a number of oddities and secrets.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

This grand manse has been transformed into a museum devoted to one of the founders of Fantastic Realism.

This series of Baroque passageways in Vienna's cultural center mix old architecture with modern art.

The townhouse where the "Blood Countess" Elizabeth Báthory started her murderous career.

Vienna's underworld of tunnels and subterranean rivers made an iconic appearance in a 1949 Orson Welles film.

Op-art architecture designed for happiness.

The 1852 novel "Uncle Tom's Cabin" lends its name to a subway station, a street, and several shops on the edge of Berlin.

This water-tower-turned-high-end-apartment building was once the site of an early Nazi concentration camp.

This legendary "evil" doll has been haunting the citizens of Key West for over 100 years.

The behemoth beasts engaged in an epic battle is the second-tallest statue in the contiguous United States.

A "Titanic" superfan changed his name to Jack and set up this strange shrine to the blockbuster, complete with Korean food and Tarot readings.

This basilica is dedicated to two saints, one of which is known more for his famous quote.

Hidden within this iconic mountain are a set of World War II bunkers once used by German forces.

More sculpture than building, this architecturally significant temple was built on the spot of Saint Peter's crucifixion.

An abandoned Roman salami factory has found new life as an art space home to 200 squatters.