The walking tour of Athens includes a stop at the Church of Agios Eleftherios. Conveniently right next to the Cathedral.
Wrong! At least according to Google maps, which puts the Church of Agios Eleftherios 5 KM north of the Cathedral.
What's pictured in the Steves guidebook is the Holy Church of the Virgin Mary Gorgoepikoos and Saint Eleutherius, which is in fact around the corner from the Cathedral.