Along the edge of this fountain are 365 smaller fountains that represent the days of the year.

Built on a medieval synagogue, this church has a burial crypt, tunnel system, and Jewish ritual bath hiding deep underneath.

This museum is dedicated to the little known ancient Roman history of Vienna.

A spherical "micro-nation" in the heart of Vienna.

The bones of some 7,000 soldiers killed in the historic Battle of Solferino are stored here.

On the shores of Lake Garda, the ruins of a Roman villa that allegedly belonged to the poet Catullus.

A military museum, art park, mausoleum, and architectural oddity all on one fascist's estate.

This winding road through an Italian canyon may be the most scenic drive in the world.

The remains of a sunken military ship wreck visible through clear water.

A road runs through the middle of this small Austrian chapel.

The largest ice cave in the world is thought to be the entrance to hell according to Austrian legend.

The beautiful, ornate weather station is the most popular geocache in Salzburg.

Epicurean and holy traditions converge in what may be the oldest restaurant in Europe.

A small marionette collection located within the dark cellars of an 11th-century Austrian castle.

This truly palatial work of Communist-era architecture now sits crumbling on a Croatian beach.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

In between two buildings in Ljubljana, medieval tunnel to nowhere.

This abandoned Slovenian military barracks has become a punky-political art squat.

A trough of 700 strange bronze faces runs through a narrow alley in Ljubljana's old town.

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

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

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.