Castellana Grotte is a town in the Apulia region of southern Italy, known for its stunning limestone caves, the Grotte di Castellana. Discovered in 1938, these caves feature impressive stalactites and stalagmites, attracting visitors from around the world. The caves extend for about 3 kilometers and offer guided tours that showcase their natural beauty. The town itself has a rich history, with roots dating back to ancient times. Castellana Grotte is also close to other notable locations, such as the Alberobello and its famous trulli houses, making it a popular destination for tourists exploring the region.