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

A new sculpture calls attention to climate change in the centuries-old city it threatens.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

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

Thousand-year-old Viking runes adorn an ancient Greek lion at the entrance to the Venetian Arsenal.

Venice's island of the dead.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

When a massive landslide hit one of the world's tallest dams it created a tragic environmental disaster.

Island wonderland for communist autocrats.

A cone-shaped top and cylindrical body set this 900-year-old structure apart from other Italian bell towers.

A star-shaped fortress town fort built in the geometric model of the Renaissance utopian city.

During World War II, this rice mill became a Nazi concentration camp.

The Adriatic's most famous wind can be reliably experienced in the city's Marina.

This historic floating crane became an unlikely symbol of the port of Trieste.

One of the tallest lighthouses in the world also serves as a monument to the fallen of World War I.

Two bronze wolves atop this large rock honor the "Wolves of Tuscany" brigade of World War I.

One of the largest caves in the world open to the public.

With its mine closed, this old village is starting to resemble a ghost town.

This spire on an Austrian mountain is wrapped around a long spiral slide and has the world's tallest wooden observation deck.

The world's most important buildings shrunk to a tiny size.

The medieval "dragon" on an Austrian city's coat-of-arms comes to life in a fountain.

A miniature train-ride through Slovenia's largest cave system.

This was the second largest mercury mine in the world and one of the oldest preserved mine complexes in Europe.

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