Mykonos' houses have got the distinguished Cycladic architecture. The houses have a cubic scheme, with wooden windows, and doors, painted usually with intense colours. The alleys are painted with lime, so they have a bright white colour. Mykonos is very close to the islet Delos. Delos was very important in antiquity. It was the center of Delian League, the leaders of which were ancient Athenians. In Delos there was an important sanctuary for Apollon, one of twelve Greek gods. Delos today is a very important archaeological site and the visitors go there from Mykonos. Mykonos has many old traditional windmills, which are everywhere on the island