Piazza Maggiore shared by @travelleisure says: ""Piazza Maggiore is a central square in Bologna that commonly serves as a meeting place for visitors and residents. The crowd-filled hub is home to Basilica di San Petronio, a stately church with a facade that was never completed due to lack of funds. Inside, you’ll find a number of murals and the world’s longest sundial, laid in 1656 by the famous Italian astronomer Giovanni Domenico Cassini. At Piazza Maggiore, climb Torre dell'Orologio, a 15th-century clock tower equipped with two terraces offering panoramic views of the city and hills in the distance. Also on the piazza is Salaborsa Library, a beautiful public space where you can see ancient Roman ruins through the glass-paned floor."" on Postcard