This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

Old batteries and frog skeletons reside in this lakeside monument to Alessandro Volta.

An incredible mosaic-lined monument said to have held the remains of an ancient Roman empress.

This 6th-century church has the largest and best-preserved collection of Byzantine mosaics outside Constantinople.

Psychoanalyst Carl Jung reported a paranormal experience after visiting this mosaic-lined Roman baptistry.

Filled with goldfish swimming in a shallow pool of sea water, this ancient crypt is more wishing well than burial site.

Italian poet Dante Alighieri is entombed in this small mausoleum in Ravenna, and his hometown of Florence has never been too happy about it.

An architectural oddity where the triglyphs of the courtyard of walls create an optical illusion.

A room filled with frescos that make it seem like the walls are crumbling down while giants die in despair.

The oldest church in Mantua was buried for centuries under the facades of other structures.

A medieval tower with a suspended iron cage used as an open-air jail for criminals who were exposed as a warning.

It took more than 300 years to build this church, which is home to two sacred vessels believed to hold the blood of Christ.

A young Italian couple has been locked in an embrace for over 6,000 years.

The pile of books behind the dignified writer gave the statue a most undignified nickname.

A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

Built to repay the sins of the father, this church is home to one of the most valuable works of Western art.

One of the world's oldest working clocks is curiously missing the Zodiac sign of Libra.

In medieval times this small stone seat was used as a bizarre way to punish insolvent debtors.

The incorrupt tongue of the patron saint of lost things is venerated in this basilica.

The oldest botanical garden in the world that technically isn't the oldest.

One of the largest squares in Europe contains an entire artificial island.

The medieval castle built as headquarters for the Pope's secretive Knights Templar.

This Renaissance palace features a unique architectural design and is now home to the Ferrara National Art Gallery.