Athens, Attica, Greece- Pan shot of outside wall of iconic Zappeion hall, Athens historic center, Attica, Greece on a sunny day

athens attica greece pan shot iconic zappeion hall historic center sunny day daytime day architecture attraction building capital center city classical colonnade column conference destination europe exhibition greek hall hellas historical holiday interior landmark megaro megaron monument neoclassical old outdoor palace park pillar sky tourism tourist touristic travel zappeio zappeion outside wall empty road trees