An atmospheric and very grown-up dining room occupies the ground floor of the city’s most decorative Renaissance-era landmark, where high-ceilings, paneling, frescoes, and Persian carpets provide lovely old world surroundings for a menu to match. Rumpsteak with cream sauce, roasted venison, calf’s livers with apples and onions, Kurpfälzer (a so-called farmer’s treat of liver dumplings and sausages served on potatoes and sauerkraut) are among the many local specialties that seasoned waiters serve on starched linens. One of the advantages of staying in one of the comfortable rooms upstairs is lingering late over a meal in this memorable dining room without worrying about moving on.