11 of 20: The monastery of Agia Trias is seen at Meteora in northern central Greece, on Tuesday May 14, 2013. Meteora, a UNESCO World Heritage site, is best known for its clifftop monasteries, some more than 500-years old. Greece is hoping for a busy tourist season with foreign visitors in 2013, but hotel associations at destinations like Meteora, which are favored by the domestic market, have reported weak bookings from Greek people so far this year as the country continues to suffer through financial crisis. (AP Photo/Dimitri Messinis) (AP Photo/ Dimitri Messinis)

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