Explore the whitewashed villages and blue-domed churches of Santorini, among the most photographed sights in Greece. Discover the hidden gem of Pyrgos, a medieval village less touched by tourism, where narrow streets lead to the remains of an ancient castle, then enjoy a scenic walk from Firostefani to Imerovigli with astounding clifftop views. Continue to Oia to explore its one-of-a-kind whitewashed architecture and colorful pastel cave homes built into the cliffs above the bay and caldera. The tour ends back in Thira, where you can stroll the promenade past pretty churches and more remarkable vistas.