The key to happiness – could you find it here? The Schell Collection, Austria’s museum of locks, keys, coffers, ornamental boxes and ornate cast iron, and also the biggest specialist museum of its kind in the world. Find the answers to questions such as “Why is there a key on a pocket watch chain?” or “Why would you need a funeral casket key?” … and “Are you sure that you found all of the secret compartments in your great grandfather’s desk?”

亚历山大广场曾是柏林东区的中心，现在它是德国最大的市内广场，并已发展成为颇受欢迎的购物胜地。电视塔高368米，为德国最高塔。站在电视塔上，可以领略绝佳的景观。

宪兵广场的一侧是德意志大教堂（German Dome），另一侧是法兰西大教堂（French Dome），中间是音乐厅(Concert House)和席勒纪念馆（Schiller Memorial），是欧洲最美丽的广场之一。夏天这里举行露天古典音乐会，冬天这里是柏林最漂亮和浪漫的圣诞市场之一，出售加香料的热葡萄酒。