The Prince George Ballroom was built in 1904 with an addition in 1912. The Prince George Hotel was a key fixture in the vibrant Madison Square neighborhood, with prominent guests such as playwright Eugene O’Neill. The hotel was designed by architect Howard Greenley in the Beaux Arts style, and had many classical and Neo-Renaissance flourishes. The historic building underwent a major renovation in 2015 and today the Ballroom is an important event space in the Flatiron District, and has served as the location for fashion shows by such designers as Oscar de la Renta, Claire Pettibone and Alice + Olivia, among others.