Pilgrimage site for star-crossed lovers.

France's most famous cemetery, with some of its most curious tombs.

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

Breathtaking and huge 430 year old maps of Italy.

Macabre astrological automaton clock dating to the late 1400s.

Budapest's Communist-era statues, banished to the suburbs.

Museum dedicated to the terror regimes of Hungary.

A towering spire in the fortress of Kalemegdan honors the victorious armies of Serbia during their struggles against the Ottoman Empire.

Romania's triumphal arch looks out over Bucharest.

In Egypt's expanding metro area, many of the neighbors are dead.

The bears of Bern have been a city highlight for over 500 years.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

This landmark cemetery in Boston was created more than 300 years ago.

Tragedy on Little Brewster Island memorialized.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

Catalonia Tradition: Beating the hollow Christmas log until it defecates in your fireplace.

Giant topiary dog once played a role in a terrorist bomb plot.

Holy Grotto of Montserrat Monastery holds one of Europe's mysterious black Madonnas.

Commonly acknowledged as the only public monument to the Devil himself.

Living towers made of people that are now recognized by UNESCO.

An ancient Egyptian temple in the middle of Madrid, Spain.

Every equinox this Maya pyramid puts on a spooky ancient light show.

The largest cave shaft in the world is home to thousands of birds and popular with BASE jumpers.