Duomo di Siena
What the experts agree on
Siena's cathedral showcases stunning 15th-century artistry, from intricate marble floors to frescoed baptistery, plus a remarkably preserved crypt hidden beneath for 700 years.
“The Baptistery is lined with 15th-century frescoes and centres around a hexagonal marble font by Jacopo della Quercia, decorated with bronze panels depicting the life of St John the Baptist.”
– Lonely Planet
"After it had lain unseen for possibly 700 years, a crypt was rediscovered under the grand pavimento (floor) of the Duomo during routine excavation work and was opened to the public in 2003. " Full review