Al-Ahsa, also known as Al-Hasa, is a region in the eastern part of Saudi Arabia, situated between the cities of Riyadh and Dammam. It is known for its rich history, culture, and natural resources, particularly its oases and palm groves, which have made it a center for agriculture and trade for centuries.

The region is home to several important archaeological sites, including the ancient city of Al-Hasa, which was a hub for trade and culture during the pre-Islamic period, and the nearby Al-Qarah Mountain, which contains inscriptions dating back to the 1st century BCE. The area also contains numerous forts and castles, including the Al-Musmak Castle in the city of Riyadh, which played a key role in the unification of Saudi Arabia in the late 19th century.

The Al-Ahsa region is also known for its traditional arts and crafts, particularly its pottery and weaving, which have been handed down through generations. The region's date palm groves are among the largest in the world, producing a wide variety of dates, which are an important part of the local cuisine.

In recent years, Al-Ahsa has become a popular destination for tourists, who come to explore its historic sites, natural beauty, and traditional culture. The region has also been recognized by UNESCO for its outstanding universal value, particularly for its oases and the unique cultural practices associated with them.