Piazza del Duomo (cathedral square) in Pisa, Italy, showing the Duomo, the medieval cathedral, and the campanile, the freestanding bell tower of the cathedral, better known as the leaning tower of Pisa. The tower has a height of over 55 meters and leans at an angle of about 4 degrees. Piazza del Duomo, also known as Piazza dei Miracoli (miracle square) is a UNESCO world heritage site since 1987.

Basilica di Santa Maria del Fiore, the cathedral (Duomo) of Florence, Italy