The church of the Rotunda (see below) in Catania began as a Roman bath complex in the 1st or 2nd century CE, but was converted to a church around the 6th century. Over the years it was updated, abandoned, fell into ruin, refurbished. Now it’s open to the public and takes its place as part of Catania’s considerable cultural and antique remains. It’s such a great city, and every time I come here they seem more and more ready for tourists. There’s great little hotels and Air BnBs and super little restaurants too.