By Nicholas Yeap @CNNMoney August 12, 2015: 7:23 AM ET
St. Ermins Hotel, London
Designed by the 19th-century British architect E.T. Hall in 1887 as a mansion block (residential apartment blocks), the St. James Park property (shown in an artist's rendition, above) was first converted into St. Ermin's Hotel at the turn of the century in 1900.