Interior Pictures 1 Tivoli-Union Brewery (Milwaukee Brewery), Denver Colorado Tweet Tower Building interior. First view of plant behind offices Equipment and double iron steps to 2nd floor. Beer parties were also held here. Tower building. Large copper brewing kettle on second floor. Tower building. Hot water tap floor shown. Mixing vat at center level. Juices mix and flow and left lower level. Copper kettles are down below view level. Looking toward front of building. Copper taps below mixer and above copper kettles. Mixing Vat.