171:365 It's Gold

This is the tower of the beautiful Carbide & Carbon Building, now home to the Hard Rock Hotel.

Built in in 1929, and designed by the sons of Daniel Burnham, urban legend has it that it was designed to look like a champagne bottle - the lower facade is polished black granite, with green terra cotta and 24-karat gold leaf on the tower. It's a Chicago landmark - there is nothing else like it in the City.

It became the Hard Rock Hotel in 2004.