Stockholms slott, Stockholm Palace, is the official residence as well as the most important Royal Palace of the Swedish Monarchy (whose private residence is the Drottningholm Castle). The building is located on the Isle of Stadsholmen, better known as Gamla Stan (the old town), next to Riksdag, the building that houses the parliament. It was realized after 1697, following a fire that had destroyed the original structure; The project is due to Nicodemus Tessin il Giovane, the first building erected in the place where the Royal Palace was built in Stockholm. It was a fortress containing a fortified tower from the 13th century, designed by Birger Jarl to defend Lake Mälaren. The fortress progressively grew to form a real castle, called Three Crowns with three crowns standing on the inner tower, a symbol of Sweden itself. At the end of the 16th century, much of the work to transform the ancient fortress into a Renaissance palace according to King Giovanni III's dictates was over. In 1690 it was decided to rebuild the Baroque style building on the designs of Nicodemus Tessin the young man. In 1692 the work started from the north wing and was completed in the whole building in 1697, but in that same year, on May 7, the entire palace was destroyed by a fire. The palace is built in brick, with intersections on the limestone facades. The roof is covered with copper and surrounded by a stone balustrade that surrounds the entire building on top. The building has 1430 rooms with 660 windows and covers an area of 62,210 square meters. The palace consists of four wings: west, south, east, north. The south facade symbolically represents the nation, the west the king, the east the queen, the north the monarchy in general. The east and west facades have a total length of 115 meters, while those north and south reach 120 meters. The four wings are connected to an inner courtyard. In front of the main facade there are two semicircular wings that create a square in front of the complex. Noteworthy is the Logården ("Lynx Court") is a small garden located between the southeast wing and the north-east wing. Climbing the West Gate, the visitor finds the entrance to the apartments built to the will of the royal family on the left of the second floor, and the entrance of the Knights Order Hall to the right. The north wing of the palace welcomes the queen and king apartments suites (which contain bedrooms, antiques and wardrobes). Among the state-owned apartments in this area we mention the ballroom called Vita Havet (White Sea), in addition to the gallery of Carlo XI, used since 1950 as a banquet hall where 200 guests can be accommodated each year they turn into about 10 official banquets (including the one in honor of the Nobel prizes). Always in the north wing of the building is the Ancient Hall where the king, and sometimes the hereditary prince, meet the government for the State Council. On the ground floor there are areas for exhibitions or shows open to the public, although in the past the area was part of the private apartments of King Gustavo VI Adolfo. At the road level, there is the "Tre Kronor" museum, in the rooms that used to welcome the kitchens of the old castle and which are to this day the oldest rooms reintegrated into the structure of the palace after its restoration. A staircase then leads to the Rikssalen and the chapel of the royal palace, which are facing each other. Another staircase leads down to the Skattkammaren (Treasury Room) containing the jewels of the Swedish crown. In the northeast area is the Gustavo III Antique Museum, which preserves among other things ancient sculptures found in Italy and related to the ancient Roman period.