29^th Balkan Mathematical Olympiad

The only city gate to have survived until the present day is the most attractive of the Pamphylia: Uckapilar (Three Gates), also known as Hadrian's Gate, which is guarded by one tower on either side. Built to honour the emperor Hadrian's visit to the city in 130 AD, the whole gate, except for the columns, is made of pure white marble. The reliefs and carvings are extraordinary.