Erfurt's cathedral, where Martin Luther was ordained a priest, has origins as a simple 8th-century chapel that grew into the stately Gothic pile you see today. Standouts in its treasure-filled interior include the stained-glass windows; the Wolfram, an 850-year-old bronze candelabrum in the shape of a man; the Gloriosa bell (1497); a Romanesque stucco Madonna; and the intricately carved choir stalls.

The steps buttressing the cathedral make for a dramatic backdrop for the popular Domstufen-Festspiele, a classical-music festival held in July or August.