Located off the coast of the Cap d’Agde, the Fort de Brescou is built on top of the submerged part of an old undersea volcano. It was Cardinal de Richelieu’s dream to make it the entrance to a great port, but the work was stopped after his death.
Built by the Vicomte de Joyeuse in 1586, its primary role was to defend. Unfortunately, its modest fortifications were unable to withstand Montmorency’s revolt and it was completely destroyed in 1632.
Restored from a ruin, it was rebuilt how we see it today in 1680, probably using Vauban's plans.It became a state prison in the 18th century.The site can be viewed from a boat but can no longer be visited.
References: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.