The 277m summit of Lykavittos – 'Hill of Wolves', from ancient times, when it was wilder than it is now – gives the finest panoramas of the city and the Attic basin, nefos (pollution haze) permitting. Perched on the summit is the little Chapel of Agios Georgios, floodlit like a beacon over the city at night. Walk up the path from the top of Loukianou in Kolonaki, or take the 10-minute funicular railway from the top of Ploutarhou.
Open-air Lykavittos Theatre, northeast of the summit, is a 1960s ampitheatre which hosts concerts and other events in summer. And of course there is a cafe at the top to reward your walk.