Built in 548 over the site of the martyrdom of St. Vitalis, this octagonal church contains some of the most celebrated mosaics in the West.

The Paestum Archaeological Site in southern Italy is home to three Doric Greek temples - the Temple of Neptune, Temple of Hera and Temple of Ceres - and many other ancient ruins.

One of Europe's great icons, the Leaning Tower of Pisa is the campanile (bell tower) of Pisa Cathedral. In addition to its astonishing lean, the tower is notable for its magnificent Romanesque arcading.

Milan Cathedral is a elaborate and spiky Gothic edifice on the main square in the city center. It is the second largest Catholic cathedral in the world. And you can walk on the roof!

This 12th-century church on the outskirts of town is dedicated to Spoleto's patron saint. It has a fine Romanesque facade and extensive medieval frescoes in the crypt.

Siena's cathedral is considered one of the great examples of Italian Gothic architecture, with black-and-white stripes, beautifully decorated floors and many art masterpieces.

Begun in 1093, Pisa Cathedral is a masterpiece of Romanesque architecture. Its marble exterior is covered in rhythmic arcades and the interior boasts important works of art by Pisano and others.

Dating primarily from the 12th century, Verona's cathedral features fine Romanesque carvings, some Early Christian artifacts, and a lovely painting by Titian.