These medieval skyscrapers dominate the skyline of this small Tuscan town.

The world's most active stratovolcano is almost always erupting.

This half-finished "city of toys" was almost Italy's own Las Vegas.

A fairytale island floats in the middle of Italy's little-known Lake Orta.

Pilgrimage site for star-crossed lovers.

This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.

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

Five candy-colored villages on the Italian Riviera.

The engineering wonder and pleasure dome of a much-maligned emperor still holds undiscovered secrets.

2300-year-old Roman road connecting the empire.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

The yawning maw of this pagan visage is said to bite off the hands of liars.

This statue celebrating everyday life in Dublin has a few unsavory nicknames.

The house where the writer spent his formative years.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

French commune at the heart of conspiracies.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Metro station with a claim to rock n' roll fame.

Cold war icon and onetime "hole" in the iron curtain.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Remains of the artificial harbours invented for the Allied invasion of Normandy can still be seen at sea.