If your trip to Olbia is all locked in but your itinerary is a bit on the empty side, let us give you a helping hand.Basilica of San Simplicio is a noteworthy attraction in this fascinating city. Swing by and see for yourself what all the fuss is about.Stop by National Archaeological Museum of Olbia. It's one attraction you'll usually find on most travelers' must-do lists. If you still have space on that itinerary, Sacred Well of Sa Testa and Church of San Paolo will keep you entertained as well.