St. Patrick's Cathedral was constructed starting in 1858 to accommodate the growing Archdiocese of New York and to replace St. Patrick's Old Cathedral. Work was halted in the early 1860s during the American Civil War; the cathedral was completed in 1878 and dedicated on May 25, 1879. The archbishop's house and rectory were added in the early 1880s, both by James Renwick Jr., and the spires were added in 1888. A Lady chapel designed by Charles T. Mathews was constructed from 1901 to 1906. The cathedral was consecrated on October 5, 1910, after all its debt had been paid off. Extensive restorations of the cathedral were conducted several times, including in the 1940s, 1970s, and 2010s.
St. Patrick's Cathedral is clad in marble and has several dozen stained glass windows. It measures 101 m long, with a maximum width of 53 m at the transepts. The bronze doors that form the cathedral's main entrance on Fifth Avenue are flanked by towers with spires rising 100 m. The northern tower contains nineteen bells, and the interior has two pipe organs. Inside is a nave flanked by several chapels; two transepts; a chancel and apse; and a crypt. East of the apse are the rectory, Lady chapel, and archbishop's residence facing Madison Avenue.
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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.