Fredensborg Palace, beside Esrum Lake, has for many years been one of the homes that Queen Margrethe II and her husband Prince Henrik have used most, especially in the summer. The royal couple have also stayed in the Chancellery House, just next to the main building. The beautiful 18th century baroque palace is also used by the Queen when receiving major official state visits and as a venue for royal family events.

Kronborg is an elegant Renaissance castle and a monumental stronghold. The castle was added to the UNESCO list of World Heritage Sites in 2000. The castle was built in 1574–85. A major fire destroyed everything but the castle church in 1629. So today, only the church is in its original state. By the 17th century the castle's fame had spread beyond Denmark and Shakespeare chose the castle as the backdrop to his classic Hamlet.

Frederiksborg Castle in Hillerød has become a national symbol. Denmark's history is written in its exterior and interior. Frederik II was a hunting enthusiast and he acquired Hillerødsholm, a manor in the richly-forested North Zealand in 1560. He renamed it Frederiksborg. His son Christian IV was equally enthusiastic and in the period 1602–1615 built a magnificent castle with three wings, fit for a king with international ambitions.