The Acropolis in Athens was a fortress which has developed itself into one of the most important sanctuaries during centuries. The most impressive building is the Parthenon (“virgins chamber”) – the temple for the City Goddess Athena. It was erected between 447 B.C. and 433 B.C. The Acropolis was built to thank this Goddess who is thought to have saved the Athenians in the Persian war. The Acropolis is a part of the UNESCO World Cultural Heritage since 1986.