The Ulmer Münster is the second largest Gothic church in Germany — surpassed only by Cologne Cathedral. At 161.5 metres, its spire is the tallest church tower in the world. Climbing the 768 steps rewards you with a panoramic view over Baden-Württemberg's Ulm and Bavaria's Neu-Ulm, and on clear days a vista of the Alps from Säntis to the Zugspitze.
Construction began in 1377 and was not completed until 1890 — more than five centuries of work. The interior is surprisingly austere for such an ambitious building, with clean lines and a quiet grandeur. The choir stalls, carved by Jörg Syrlin the Elder in 1469, are among the finest in Germany. Open daily.