Historic Jeddah UNESCO, Riyadh At Turaif District UNESCO, Fort Masmak, Kingdom Center with Skybridge, National Museum, Madain Saleh (called Hegra now) near Al Ula UNESCO and certainly the most celebrated cultural landscape in Saudi Arabia. Jubbah Rock Art galleries, best by car or tour. Buraydah camel market early morning, good photo opportunities. Excursion by ferry (free of charge) to the Farasan islands from Jazan. Rijal Alma Heritage village. Nejran near the Jemen border is also worth discovering, many castles and the Hima Wells Rock art UNESCO, we hitchhiked.