3. Oia Castle in Santorini, Greece
This is the place everyone sees on the postcards or advertisements beckoning you to vacation in Greece. The pristine white buildings with blue roofs, doors and gates are a sight to see even without the sunsets. But add a sunset and you’ve got the recipe for a thrilling view. As the sun lowers itself into the Aegean Sea, the vivid pinks, oranges and reds are reflected on the water and also off of the white buildings, adding even more to the colorful view. Stunning!