The Rothko Chapel is a non-denominational chapel in Houston, Texas founded by John and Dominique de Menil. The interior serves not only as a chapel, but also as a major work of modern art. On its walls are fourteen black but color hued paintings by Mark Rothko. The shape of the building, an octagon inscribed in a Greek cross, and the design of the chapel was largely influenced by the artist.
Susan J. Barnes states "The Rothko Chapel...became the world's first broadly ecumenical center, a holy place open to all religions and belonging to none. It became a center for international cultural, religious, and philosophical exchanges, for colloquia and performances. And it became a place of private prayer for individuals of all faiths"
On September 16, 2000 the Rothko Chapel was placed on the National Register of Historic Places.