Home to three historic ships from the age of Vikings.

This one-time health resort was used by aristocrats around the world.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A World War II evacuation tunnel turned into a history display of Croatian state and people.

Museum dedicated to the terror regimes of Hungary.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

Once the home of a hermetic monk, this cave now houses a small church.

The remains of 50,000 World War I soldiers rest under a towering arch overlooking the Alpine battlefields.

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.

Two stone columns flank the grand Venice square, but there were supposed to be three.

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

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

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

A sudden, striking cluster of hills south of Padua has been attracting visitors for centuries.

Destroyed numerous times, this centuries-old bridge has always been rebuilt with its original design.

Machismo turned on its head: the lady's hand goes to the dude with the bigger brain.

Featuring the last fully walkable parapet walkway in Europe.

One of the tallest bell towers in Italy plays a particular melody at just two times each day.