Islamabad is home to many migrants from other regions of Pakistan and has a cultural and religious diversity of considerable antiquity. Due to its location on the Pothohar Plateau, remnants of ancient cultures and civilisations such as Aryan, Soanian, and Indus Valley civilisation can still be found in the region. A 15th-century Gakhar fort, Pharwala Fort, which was built on the remains of a 10th-century Hindu fort, is located near Islamabad. Rawat Fort in the region was built by the Gakhars in 16th century and contains the grave of the Gakhar chief, Sultan Sarang Khan. Saidpur village in Islamabad is supposedly named after Said Khan, the son of Sultan Sarang Khan. The 500-year-old village was converted into the a place of Hindu worship by a Mughal commander, Raja Man Singh. He constructed a number of small ponds: Rama kunda, Sita kunda, Lakshaman kunda, and Hanuman kunda.
The region is home to many Hindu temples that are preserved, showing the history of Hindu civilisation and architecture in the region.. The shrine of Sufi mystic Pir Meher Ali Shah is located at Golra Sharif, which has a rich cultural heritage of the pre-Islamic period. Archaeological remains of the Buddhist era can also still be found in the region. The shrine of Bari Imam was built by Mughal Emperor Aurangzeb. Thousands of devotees from across Pakistan attend the annual Urs of Bari Imam. The event is one of the largest religious gatherings in Islamabad. In 2004, the Urs was attended by more than 1.2 million people. The Lok Virsa Museum in Islamabad preserves a wide variety of expressions of folk and traditional cultural legacy of Pakistan. It is located near the Shakarparian hills and boasts a large display of embroidered costumes, jewellery, musical instruments, woodwork, utensils and folkloristic objects from the region and other parts of Pakistan.