The "Champagne Bottle" – Carbide and Carbon Building, 333 North Michigan Avenue, Chicago, Illinois, United States (Seen from the Chicago River)

The central shaft of the building is clad in dark green and gold terra cotta and the greenish cap (which looks from a distance like malachite but is not) is trimmed in gold leaf. According to popular myth of the era, Burnham Brothers supposedly designed the building to resemble a dark green champagne bottle with gold foil at the top. Beginning on November 16, 2007, the gold-leaf tower was permanently illuminated at night, which further encouraged this urban legend.