We really enjoyed the private tour of Ephesus (Efes). The whole tour included a visit to the house of Mary and the tomb/church of St. John along with a stop at a rug manufacturing shop (you can ask the guide to skip this if you want). Of course, the highlight was the ruins of Ephesus and the library of Celsus which, although crowded with other tourists, was still a sight to behold. Our tour guide, Uhmet, was very knowledgeable and having a private guide allowed us to hear the details better and gave us the flexibility to stay in 1 site longer if we chose to do so. The terrace houses was worth the extra entrance fee. Avoid visiting in the hot months- more tourists and there is little cover from the heat.