The Homomonument is a memorial in the center of Amsterdam, the capital of the Netherlands. It commemorates all gay men and lesbians who have been subjected to persecution because of their homosexuality. Opened on September 5, 1987, it takes the form of three large pink triangles made of granite, set into the ground so as to form a larger triangle, on the bank of the Keizersgracht canal, near the historic Westerkerk church.