Imperial cult of ancient Rome cult was the burial and the memorials which any respectable Greek family gave their dead, but paid for by their City in perpetuity. Most heroes were the figures of ancient legend, but some were historical: the Athenians revered Harmodius and Aristogeiton as heroes, as saviours of Athens from tyranny; also, collectively, those who fell at the Battle of Marathon. Statesmen did not generally become heroes, but Sophocles was the hero Dexion ("the Receiver") – not as a playwright, nor a general, but because when the Athenians took Asclepius' cult during the Peloponnesian War, Sophocles housed an image of Asclepius until
Athens equestrian statue of Alexandros Papagos at Papagou district and various busts of fighters of Greek independence at the Pedion tou Areos. An important landmark is also the Tomb of the Unknown Soldier in Syntagma. Athens' most important museums include: Athens has been a destination for travellers since antiquity. Over the past decade, the city's infrastructure and social amenities have improved, in part because of its successful bid to stage the 2004 Olympic Games. The Greek Government, aided by the EU, has funded major infrastructure projects such as the state-of-the-art Eleftherios Venizelos International Airport, the expansion of the Athens Metro system,