Jameos del Agua Restaurante, Spain
Located on Lanzarote in Spain's Canary Islands, Jameos del Agua is an "entertainment venue" that consists of caverns and partially collapsed volcanic tubes that visitors can walk through to reach a huge cave and a transparent salt lake. From there, you can take the path that heads above ground past lush plant life toward a gorgeous in-ground pool. Or you can take a path that leads into an underground auditorium that seats more than 500 people. Also underground is a restaurant and bar where, three times a week, patrons come for dinner and dancing.
Items on the menu, which is packed with Mediterranean and European dishes, are not as pricey as other spots on this list and get mostly positive reviews online.