Behind the railway bridge, with a slope of 65%, rises the Calmont, whose south side is the world's steepest vineyard, reaching a height of 378 m. A hike up the via ferrata to the mountain ridge is among the most impressive experiences on the Moselle. On the other side, on the former Insula Sankt Nicolai, stands the ruin of a convent church that once belonged to the Stuben Augustinian convent, founded in 1137. From 1208 to 1788, it housed the famous "Limburger Staurothek", a reliquary that is important to art history, allegedly containing bits of the Cross on which Jesus was crucified. Today, it is part of the Limburg cathedral treasury.