The Botanic Gardens of Belfast opened in 1828 as the private Royal Belfast Botanical Gardens. It continued as a private park for many years, only opening to members of the public on Sundays prior to 1895. Then it became a public park in 1895 when the Belfast Corporation bought the gardens from the Belfast Botanical and Horticultural Society.
Occupying 28 acres (110,000 m2) of south Belfast, the gardens are popular with office workers, students and tourists. The gardens' most notable feature is the Palm House conservatory. It was completed in 1840. It is one of the earliest examples of a curvilinear cast iron glasshouses in the world. The Palm House consists of two wings, the cool wing and the tropical wing. Lanyon altered his original plans to increase the height of the latter wing's dome, allowing for much taller plants. In the past these have included an 11 metre tall globe spear lily. The lily, which is native to Australia, finally bloomed in 2005 after a 23-year wait. The Palm House also features a 400-year-old Xanthorrhoea.
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.