The central and oldest part of the palace is the domed Altes Schloss (Old Palace), which is also called the Nering-Eosander-Bau after its two architects. Here you can visit the apartments of Frederick I and Queen Sophie Charlotte. The rooms are decorated in a sumptuous Baroque style with plenty of stucco, wood paneling, gilded ornaments and frescoes. Unfortunately not all frescoes have been restored. Other interesting rooms include the Oval Room, which looks out over the garden; the opulent Schlosskapelle, a chapel with an impressive royal box; and the Porcelain Chamber, laden with more than two thousand pieces of Chinese porcelain.