Built in 1703, Heidelberg’s oldest and most famous tavern has certainly had some illustrious patrons. Mark Twain, Marilyn Monroe, and John Wayne are just a few of the celebrities who drank and dined here—a fact that’s proven by the many photos of famous faces hanging on the walls. Notable clientele notwithstanding, Zum Roten Ochsen is all about simplicity. Still run by the same family that opened it hundreds of years ago, it serves rich local dishes, from goulash soup and bratwurst to Swabian Maultaschen (meat-filled ravioli) and Käsespätzle (cheese-covered noodles), as well as fresh herring, boiled beef, and several vegetarian options. Also on offer is a drinks menu heavy on regional wines and local Heidelberg beer, all of which are complemented by the restaurant’s old-fashioned interior, friendly service, and live piano player in the evenings.