The Blue Grotto is one of the most famous natural attractions on the island of Capri in Italy. It is a sea cave known for its stunning, intense blue color, caused by the reflection of sunlight on the water. The Blue Grotto is a natural wonder that attracts tourists from around the world, and it remains one of the must-see attractions on the picturesque island of Capri.
The Frasassi Caves, also known as the Grotte di Frasassi, are a complex system of karst caves located in the Marche region of Italy, near the town of Genga. These caves are renowned for their stunning limestone formations, vast chambers, and underground lakes.