Bierzgłowski Castle was one of the oldest stuctures built by Teutonic Knights. The Gothic style castle was built between 1270-1305 to the site of previous castle (from the 1260s), which was destroyed by Lithuanians in 1263. Bierzgłowski castle has been rebuilt several times between 15th and 19th centuries. The castle has an unique ceramic relief in a one of portals. It depicts a horseman and two knights and is one of the oldest known Prussian ceramic artefacts.
References:The stone church of Gamla Uppsala, built over the pagan temple, dates from the early 12th century. Due to fire and renovations, the present church is only a remnant of the original cathedral.
Before the arrival of Christianity in Sweden, Gamla Uppsala was the seat of Swedish kings and a ceremonial site known all over northern Europe. The settlement was home to royal palaces, a royal burial ground, and a great pagan temple. The Uppsala temple, which was described in detail by Adam of Bremen in the 1070s, housed wooden statues of the Norse gods Odin, Thor and Freyr. A golden chain hung across its gables and the inside was richly decorated with gold. The temple had priests, who sacrificed to the gods according to the needs of the people.
The first Christian cathedral was probably built in the 11th century, but finished in the 12th century. The stone building may have been preceded by a wooden church and probably by the large pagan temple.