The ancient walled city Marbella retains nearly the same layout as in the 16th century. Between the old town and the sea in the area known as the "historic extension" there is a small botanical garden with fountains and a collection of ten sculptures by Salvador Dalí on the Avenida del Mar, which connects the old town with the beach. Marbella's Golden Mile is a stretch of 6.4km and is home to some of Marbella's most luxurious villas and estates. Strings of business centers, five-star hotels, golf course and other services can be found attracting locals and tourists alike.