The Mombasa Tusks (Pembe za Ndovu in Swahili) are four aluminium arches built over Moi Avenue, visible as overlapping tusks forming the letter "M" for Mombasa. They were first erected in 1952 in wood and canvas to mark the visit of Queen Elizabeth II, and then replaced with more durable aluminium in 1956 during the visit of Princess Margaret. The monument is under the care of the National Museums of Kenya and the Mombasa County Government, and today it stands as both a symbolic city landmark and a frequent photo spot for visitors entering the city centre.