The palace was built on the territory of the fortress Peterstadt amusing. The outlines of the fortress resembled mnogokonechnuyu star that formed the bulk shafts. The fortress was surrounded by a deep ditch with 3 drawbridges on 5 of its bastions were mounted guns. It housed buildings of various purpose: the commandant's house, barracks for soldiers home for the officers and generals, a guardhouse, an arsenal, a powder keg, a small Lutheran church. In the center of the fortress was ARSENALNY courtyard, which is a 5-pentagonal ground, the territory which can be accessed through the entrance gates. On the lower pool was a fleet of galleys, frigates, submarines. The garrison of the fortress consisted of a detachment of soldiers discharged from Germany.

Near the fortress was Italian garden with bridges, stairs, terraces, pergolas, cascades and fountains. All the wooden buildings of the fortress and the garden was dismantled in the early XIX century.

Currently Peterstadt preserved only by the palace of Peter III, entrance gates, the remains of the moat and ramparts. From the initial planning of the park's nothing left. In 1952-1953 this area has undergone renovation: around the flower garden of the palace were 3 new tracks on the lawn - marble sculpture.

The appearance of the palace of Peter III conquers the simplicity and elegance. The peculiar nature of the composition, exquisite decor, amazingly clear proportions can take it to the perfect work of Russian architecture of the XVIII century.

The rooms of the first floor in the XVIII century were located outbuildings without decoration. Now they - exposition tells about the history of the palace and park complex in the town of Lomonosov.

Six small rooms on the second floor - front, Picture Hall, Galley, cabinet, boudoir, bedroom, have a decoration in the nature of a truly palatial rooms: delicate carving, a magnificent sculpture, amazing painting on lacquer, fabric painting, parquet floor perfectly used their finishing.

Picture Hall - the main room of the palace. In the XVIII century it was in the Tapestry hanging the 58 paintings. From each other, they were separated by narrow silver-plated frames. This Shpalernaya hanging created (designed by A. Rinaldi) J. Staehelin architect and painter Karl Pfantselt. But in 1784 at the behest of Catherine II, most of the paintings was transferred to the Academy of Fine Arts. Shpalernaya hanging destroyed, and recreated it was only in the years 1961-1962 according to the drawings found in the archives. Now the hall is decorated with wall paintings 63 paintings by Western European artists representing painting XVII-XVIII centuries of Flemish, Italian, German, Dutch schools.

Painting on lacquer in the picture room, study and bedroom are a unique type of finish. Author - Russian land, "lakirnyh maker" Fedor Vlasov. The paintings are made in the style of decorative Chinese art. 218 tracks - on doors, panels, door and window slopes palace. It is touching, naive fantasies of Chinese themes in which Russian master "put" his own sense of life distant and mysterious for his country. Lacquer painting and tapestry hanging were restored art restorer AB Vasilyeva, RP Sausenom, BN Pugovkin, BN Kosenkov and others.

Also attracts attention and stucco decoration of the ceilings of the palace. Of particular interest is preserved molding Boudoir.

The interiors of the palace, you can see the magnificent pieces of furniture of the XVIII century, made by Russian and Western European masters, and porcelain.

Palace of Peter III - the first extant structure A. Rinaldi. It has traced the creative character of the architect, which was developed in his later works, which identified him as a nice wizard style of early classicism and rococo.