An ice palace or ice castle is a castle-like structure made of blocks of ice. These blocks are usually harvested from nearby rivers or lakes when they become frozen in winter. The first known ice palace (or, rather, ice house, ледяной дом in Russian) appeared in St. Petersburg, Russia, when Anna Ivanovna, Empress of Russia, commissioned an ice palace in St. Petersburg, Russia, during the winter of 1739–40. Architect Piotr Eropkin and scientist Georg Wolfgang Krafft used huge ice blocks measuring long by wide, joined together with frozen water, to build the palace. The city recreates the ice palace every winter. Anna Ivanovna's palace In the cold winter of 1739–1740, Anna Ivanovna gave an order to build a palace made of ice in St. Petersburg. The palace and the surrounding festivities were part of the celebration of Russia's victory over the Ottoman Empire. She ordered the architect Pyotr Yeropkin to design the building. It was built under the supervision of Georg Krafft who left a detailed description of the palace. The palace was 20 meters tall and 50 meters wide. Huge ice blocks were "glued" together with water. The garden was filled with ice trees with ice birds and an ice statue of an elephant. The outer walls were lined with ice sculptures. Before the palace there were artillery pieces also made of ice. The palace was also furnished with furniture made of ice, including an ice bed with ice mattress and pillows. The whole structure was surrounded with a tall wooden fence. The festivities involving the Ice Palace included a mock wedding of two jesters. Prince had married an Italian woman. Empress Anna saw this as an affront because she was a Catholic, not Eastern Orthodox. The wife died soon after but Anna did not forgive Galitzine and decided to punish him in an unusual manner. She first ordered him to become a jester. The Empress selected prince Galitzine a new wife, an unattractive Kalmyk maidservant . She forced the prince to marry her and displayed the newlyweds in a procession where they rode an elephant, dressed as clowns, and were followed by a number of circus freaks and farm animals. In the palace the newlyweds were closed naked into an icy nuptial chamber under heavy guard. The couple survived the night because the bride traded a pearl necklace with one of the guards for a sheepskin coat. Empress