This is by far the best property we've ever experienced on Airbnb. Mario's house is a 100 year-old stone construction in the heart of historic Sintra, with amazing traditional Portuguese furniture, fully equipped, and with so much detail and atmosphere you will need a bit of time everyday to explore the house itself. Mario is an amazing host, extremely professional and friendly, and ready to solve any kind of need guests might have. Despite being made of stone, the house is not cold at all - each room has its own electric heater, and there is also a powerful portable gas heater that can be easily rolled to any room. We've send photos of the house to family and friends and they all want to stay here next time they come to Sintra. HIGHLY recommended. Thanks Mario for everything! We will certainly be back.