Fifteen undulating agricultural miles south of Dubuque, the tiny hamlet of St. Donatus is widely advertised as a historic and picturesque Luxembourg village, mainly thanks to the handsome masonry of the Gehlen House (563/773-8200), a 150-year-old home now used as a restaurant and B&B. Other eye-catching structures are the Catholic church and Pietà Chapel atop the adjacent Calvary Hill; if you wish to make a pilgrimage up the Way of the Cross, start behind the church burial ground, east of the Kalmes General Store. There’s a nice view from the top—the other set of spires across the valley belongs to the German Lutheran St. John’s Church.