A travel route display device (1) includes a display unit (130), a topographical data storage unit (110b) that stores three-dimensional topographical data, a travel data storage unit (110c) that stores travel data relating to a travel route of a vehicle and a driving status of the vehicle on the travel route, and a control unit (120) that, when displaying the topographical data stored in the topographical data storage unit (110b) on the display unit (130), simultaneously displays, on the display unit (130), the travel route indicated by the travel data stored in the travel data storage unit (110c) in a display mode that corresponds to the driving status.