The Säve Church was erected in the early 13th century. It was first known as St. Olaf Church, after the saintly king Olaf II of Norway. The nave has a barrel vault, built in 1696. In 1704, the ceiling was covered with paintings by German artist Christian von Schönfeldt. In 1729, a cupola was built over the choir, painted by Johan Ross. The paintings depict scenes from both the New and the Old Testament. The porch was built in 1746, and the wooden tower above it was erected in 1750. The choir got its stained glass window in 1902. In 1945, the brick roof of the nave was replaced with slate.
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The Peace Palace (Vredespaleis) is an administrative building and often called the seat of international law because it houses the International Court of Justice (which is the principal judicial body of the United Nations), the Permanent Court of Arbitration, the Hague Academy of International Law, and the extensive Peace Palace Library. In addition to hosting these institutions, the Palace is also a regular venue for special events in international policy and law. The Palace officially opened on 28 August 1913, and was originally built to provide a symbolic home for the Permanent Court of Arbitration, a court created to end war which was created by treaty at the 1899 Hague Peace Conference.