The magnificent Acropolis, visible from almost every part of the city, is the hub around which Athens still revolves. This temple city, built in the 5th century BC, serves as a daily reminder to Greeks of their heritage and the city's many transformations. All over the urban basin, rooftops and balconies angle toward the landmark, a block of milky marble atop a steep-sided hill. Pull up your own chair, settle in and allow time to appreciate the Acropolis' many moods, as the light shifts and the clouds cast their shifting shadows.