The Qasr al-Hosn is supposedly the first original building in Abu Dhabi and is an open-air historical museum. It was once the home to the first ruling family of the Emirates, the Al Nahyan. The display is held at the Qasr al Hosn Centre, where the exhibition retells the beginnings of the city, its roots, and its people in striking detail. There is also a festival from time to time known as the festival of Qasr-al Hosn with live music and cultural events. The site is open from 10 am – 9 pm on most days.