Italy's most spectacular caverns are the Grotte di Frasassi in the region of Le Marche, about 65 kilometers inland from Ancona. Stunning stalactites and stalagmites fill the rooms that can be visited on a guided tour of the caves along a well-lit pathway. More adventurous explorers can sign up for a Speleo Adventure Tour. See Visiting Frasassi Caves for information about how to tour these fantastic caverns and see a couple of photos.
There are several interesting sights near Frasassi Caves including a museum, 1th century Romanesque abbey, and the picturesque village and castle of Genga, built on a limestone hill.
Photo of Grotte di Frasassi ©Piero Principi, used by permission