Wildenstein Castle consists of a residential and fortified tower. Unlike other castles of its kind, the tower remained intact after losing its military and residential functions in the 15th and 17th centuries. The history of castle dates back to the 13th century. In 1293 Heinrich von Eptingen took the name von Wildenstein. Under his son Gottfrid Wildenstein defended the castle against the the Bern and Solothurn armies in 1334. In 1995, the canton of Basel-Landschaft acquired the Wildenstein, and today there are regular cultural events.
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.