The Lenggong Valley, in the upper Perak River basin north of Kuala Kangsar, is one of the most important archaeological landscapes in Southeast Asia and a UNESCO World Heritage Site since 2012. Open-air sites in the valley have produced stone tools dating back 1.83 million years — the oldest evidence of human technology outside Africa — and a long sequence of habitation through the Palaeolithic, Mesolithic and Neolithic.
The Lenggong Archaeology Gallery at Kota Tampan houses the most important finds, including the cast of "Perak Man" and the original stone tools. Visitors can also walk around the open-air sites at Bukit Bunuh, Kota Tampan and Gua Gunung Runtuh. The valley is two hours' drive north of Ipoh; allow a full day if combined with a meal in Lenggong town.