The stone church of Hacksta date from the 13th century. It has been enlarged and restored several times. The mural paintigs were overpainted, but restored in 1981. There are several valuable artefacts in the church, like two medieval sculptures. The pulpit was made in 1680 and restored in 1822.
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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.