Naxos has been the source of quality marble for centuries, and its ancient marble quarries, and their products, are some of the island's many highlights. Naxian marble was used to create the extraordinary sculptures that can be admired on the island of Delos and the archaeological site of Delphi. At sunset, enjoy a leisurely walk along the harbor of Chora (Naxos' old town) towards the island's most imposing landmark: the Portara. This massive marble doorway dates back to 530 B.C. and was built to honor the god of light, Apollo, although it was never fully completed. The energy here is phenomenal. The myths and legends surrounding the island of Naxos are worth the trip alone. After sunset, head to one of the local tavernas found inside the fortified walls of the Venetian castle, the Kastro. If you're short on time, Naxos can also serve as a base for visiting more famous islands, such as Mykonos or Santorini, although those spots themselves deserve a few nights apiece if possible.