The Fortress of Isabel II was built between the years 1850 and 1875; it is located in one of the most beautiful spots on the island of Minorca, constituting one of the best examples of late 19th Century military architecture. Its strategic position above Maó harbour mouth made it one of the key points in the island’s defence system. At present La Mola represents a valuable Historical Military Heritage, set in a natural environment of prime importance.