Jamek Mosque, officially Sultan Abdul Samad Jamek Mosque (Malay: Masjid Jamek Sultan Abdul Samad) is one of the oldest mosques in Kuala Lumpur. It is located at the confluence of the Klang- and Gombak River. From around sunset, the blue LED uplighting activates along the riverbanks, casting the water in an electric-blue hue that photographs dramatically against the mosque's white and terracotta silhouette.