Maarjamäe or Orlov’s Palace was commissioned by Count Anatoli Orlov-Davydov from St. Petersburg. The historicist limestone summer residence on the seashore was designed by architect Robert Gödicke. In the 1930s the building housed a magnificent restaurant – the Riviera Palace. In 1937 the Estonian Air force Flying School obtained the building, the Soviet Army took over in 1940. The restored palace opened its doors to the public as a branch museum of the Estonian History Museum in 1987. Today it holds permanent and temporary exhibitions about Estonian history.
Reference: Viroweb
Rosenborg Palace was built in the period 1606-34 as Christian IV’s summerhouse just outside the ramparts of Copenhagen. Christian IV was very fond of the palace and often stayed at the castle when he resided in Copenhagen, and it was here that he died in 1648. After his death, the palace passed to his son King Frederik III, who together with his queen, Sophie Amalie, carried out several types of modernisation.
The last king who used the place as a residence was Frederik IV, and around 1720, Rosenborg was abandoned in favor of Frederiksborg Palace.Through the 1700s, considerable art treasures were collected at Rosenborg Castle, among other things items from the estates of deceased royalty and from Christiansborg after the fire there in 1794.
Soon the idea of a museum arose, and that was realised in 1833, which is The Royal Danish Collection’s official year of establishment.