only the original variants of the architectural decoration; those created by Cameron, Brenna, Voronykhin, and Rossi. The only changes permitted were to use modern materials. Columns made of wood were replaced by poured concrete or bricks, and the ceilings of the Italian and Greek Halls were made of steel and concrete so they would be fireproof. A special school, the Mukhina Leningrad Higher Artistic Industry School, was created in Leningrad to teach the arts of restoring architectural details, furniture, and art objects. This school produced a corps of restoration experts who worked on all the palaces around Leningrad. The work was meticulous and difficult, and proceeded very slowly. In 1950, after six years of planting new trees, parts of the park opened to the public. In 1955, the restoration of the facade of the Palace was completed, and restoration of the interiors began. Fortunately for the restorers, the original plans by Cameron, Brenna, Voronykhin and Rossi still existed. Also, fragments of the original interior molding, cornices, friezes and the frames for the carvings, bas-reliefs, medallions and paintings still remained, and could be copied. In addition, there were 2500 photographic negatives taken in the early century by Benois, and another eleven thousand photographs taken just before the war. The chief of the restoration, Feodor Oleinik, was insistent that all the restoration be faithful to the original work: "Pay attention and do not use later details", he demanded. "Only the original variant, only that done by Cameron, Brenna, Vornykhin, or Rossi." Old techniques of artisans of the 18th century, such as painting false marble and gilding furniture, had to be relearned and applied. A silk workshop was opened in Moscow to recreate the original woven fabrics for wall coverings and upholstery, copying the texture, color and thread counts of the originals. In forty rooms of the Palace, painted decoration on the walls and ceilings had to be precisely recreated in the original colors and designs. A Master painter and six helpers recreated the original trompe l'oeil ceilings and wall paintings. Once the interior walls and decoration had been exactly recreated, the next step was the furnishings. The twelve thousand pieces of furniture and art objects removed from their original places, from paintings and tapestries to water pitchers and glasses, had to be put back where they belonged. Furniture, doors, and parquet floors of many different colors of wood which had been burned