Kelantan Royal Mausoleum or Langgar Royal Mausoleum is a Kelantan royal burial ground located at Kampung Langgar near Kota Bharu, Kelantan, Malaysia.

Sultan Sulaiman Royal Mosque is Selangor's royal mosque, which is located in Klang, Selangor, Malaysia. It was constructed by the British in the early 1932 and was officially opened in 1933 by the late Almarhum Sultan Sir Alaeddin Sulaiman Shah.