One of the only single-person private gravesites in New York City.

The home of aviation trailblazers, in a remote corner of the big city.

Church in Manhattan holds the bloody sock of Padre Pio, among with many other unusual relics.

A glamorous hotel that once accommodated French resistance fighters and concentration camp survivors.

This 18th-century sundial was designed to calculate the date of Easter each year.

The video game-themed street art first popped up in the French city.

The approximate spot where the last Grand Master of the Knights Templar was put to death.

With a history of slaughter, feast, and famine, remnants of the pork industry decorate this area--even its church.

The remaining relics of the patroness of Paris lie in a chapel under a striking double spiral staircase.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

The tomb of one of Scotland's bloody historic villains is a magnet for bumbling desecrators.

A Nesting Doll of Churches.

When you can't get to the Pacific, just go to Florida.

St Bernard de Clairvaux Episcopal Church, better known as one of the oldest European buildings in the Western Hemisphere.

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

Breathtaking and huge 430 year old maps of Italy.

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

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

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

Go inside to really appreciate this 500-year-old technological masterpiece.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

The celebrated eyesore created by starry-eyed sweethearts.

Notorious artist squat renovated into legal studios.

A popular shrine where the Blessed Virgin allegedly appeared in 1830, displaying a holy armchair and two incorruptible remains of Lady Saints.