Tulsa is a city on the Arkansas River, in the U.S. state of Oklahoma. It’s known for its art deco architecture, mostly in the central Deco District. Landmarks like the Philcade and Philtower buildings reflect a 20th-century construction boom fueled by the prosperous local oil industry. The Philbrook Museum of Art is housed in an Italianate villa that was once the home of a local oil magnate.