The Panhandle-Plains Historical Museum has long been Canyon's heavyweight cultural sight, with collections that stretch from dinosaurs and Indigenous history to cattle ranching, petroleum, firearms, and Western art. It is the kind of regional museum that can explain a landscape better than another scenic overlook.
Recent closure and relocation debates mean you should verify current access before going. If it is open during your visit, allow more time than you think; the subject is the whole Texas Panhandle, not just the town of Canyon.