1. The Marble Palace, also known as Marmorpalais in German, is a magnificent neoclassical palace located in Potsdam, Berlin. The palace was built in the 18th century by Frederick the Great as a summer residence for himself and his guests. The palace boasts stunning marble interiors, a beautiful garden, and an impressive collection of artwork. The palace has been restored and is now open to the public. Interesting facts about the Marble Palace include:

- The palace is situated in the Sanssouci Park, a UNESCO World Heritage site, and is surrounded by lush gardens and fountains.

- The palace was designed by architect Carl von Gontard and decorated by the sculptor Johann Joachim Gottlieb Winckelmann.

- The palace was used as a residence by various members of the royal family until it was seized by the Soviet army in 1945.

- The palace underwent extensive restoration work after the reunification of Germany and was reopened to the public in 2006.

2. The Marble Palace is open daily from April to October, from 10 am to 6 pm. The last admission is at 5:30 pm. The palace is closed from November to March. The phone number for the Marble Palace is +49 (0)331 969 4200.

3. The entrance fee for the Marble Palace is €8 per adult and €6 per child. Admission is free for children under the age of 18. A combined ticket for the Sanssouci Park, which includes entry to the Marble Palace, costs €19 per adult and €14 per child. The palace is easily accessible by public transportation, with the closest train station being Potsdam Park Sanssouci.