Kiek in de Kök is an artillery tower built between 1475 and 1483. It is 38 m high and has walls 4 m thick. Cannon balls dating back to 1577 are still embedded in its outer walls. Compared to the other Tallinn towers Kiek in de Kök was predominant in its fire power, due to its 27 embrasures for cannons and 30 for handguns
Kiek in de Kök (low German Peep into the Kitchen ) is an old German language nickname for towers, mainly those which were parts of town fortifications. They gained the name from the ability of the tower occupants to literally see what's cooking in the kitchens of nearby houses.
Due to the history of the Hanseatic League and the Teutonic Order, also towers far outside modern Germany bear this name, like in Gdańsk and Tallinn.
20th century restoration work saw the tower and surrounding area returned to a more historical look. The tower now serves as a museum and photographic gallery.
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.