Near Obrowiec, there is a mysterious multi-level elevation surrounded by a distinct embankment and a moat. It used to be a seat of the Knights Templar. Tempelberg was a big tourist attraction already before the Second World War. According to old chronicles, the Knights Templar established a stronghold in Obrowiec near Krapkowice at the turn of the 14th century. For centuries to come, the stronghold was known as Tempelberg. Located about 200 metres from the riverbed, it is surrounded by a broad moat. The height of the stronghold mound is up to four metres from the ground. The place is still there today. In its Oder part, the embankment disappears for a few metres, which might mean that the entrance gate used to be located there. Separate pieces of limestone which are not to be found elsewhere on the surrounding fields suggest that the place used to have buildings at least partly build of this material. On the embankment, there are also a dozen or so impressive, age-old pedunculate oaks. The order of the Knights Templar allegedly had its castles in Otm?t, Rogów Opolski and Krapkowice. According to a legend, Tempelberg was to be connected with them by means of underground tunnels. This may have well have been true as each commandery had its own system of tunnels allowing the knights to escape at times of danger. Some of the tunnels ran the length of a dozen or so kilometres and were connected with the ones of another commandery. Obrowiec, Rogów, Krapkowice, and Otm?t could make up one commandery. It is also possible that they were connected by a network of tunnels, not least because they are not far away from one another. The Knights Templar were first mentioned in Silesia in 1226. Tempelberg was probably a watchtower protecting a convenient crossing point across the Oder on the old trade route from Strzelce Opolskie to G?ogówek. During excavations carried out in Tempelberg at the end of the 19th century and in 1957, archaeologists found pottery from the 13th – 15th century. The stronghold may remember the expedition of Tartar troops of 1241 as part of them marched along the right bank of the Oder going from Ko?le to Opole.