2 Best Sights in The Cyclades, Greece

This tiny 5-km-long (3-mile-long) island was once considered the most sacred place in the known world and is now a UNESCO World Heritage site. Fabled as the birthplace of Apollo and his twin sister Artemis, it is a testament to Greece's glorious ancient civilization and home to one of its most important archaeological sites. First settled in the 3rd millennium BC, the sanctuary reached its glory in the Classical period as pilgrims from all over paid tribute to Apollo. To preserve its sacred importance, births and deaths on the island were forbidden and yet a population of 30,000 crammed on to the island as it became the main trading center of the eastern Mediterranean. Today the island is uninhabited, but it is easy to imagine the ancient society that once ruled here. You will find ruins of ancient temples, houses, an amphitheater, elaborate mosaics, and, of course, the acclaimed Terrace of the Lions statues. Hike to the summit of Mt. Kynthos (370 feet) and you will be blessed with views of the surrounding islands that circle Delos. The boat from Mykonos takes 30 minutes and overnight stays are not allowed.

The island has no shade, so don't forget to bring a hat, sunscreen, and plenty of water.

Not a beach per se, but one of the best swimming spots on the island. From Ia, walk down to Ammoudi, then follow the path past the Sunset taverna to the narrow channel that separates Santorini from little Agios Nikolaos island, so named because of the small chapel that rests on it. Intrepid adventurers swim across and rest on ledges beneath the chapel, enjoying sensational views of the cliffs and Ia perched high above. Amenities: none. Best For: swimming.