Fodor's Expert Review Sassi di Matera

Matera's Sassi are piled chaotically atop one another down the sides of a steep ravine. Some date from Paleolithic times, when they were truly just caves. Over time, they were transformed into enclosed houses. In the 1960s, most inhabitants moved into ugly apartment blocks. The 1993 designation as a UNESCO World Heritage site, however, resulted in a cleanup and gentrification, with hotels, bars, and restaurants taking over many structures. From the upper town, the Strada Panoramica walk offers stellar views of the two areas known as Sasso Caveoso and Sasso Barisano.