Tiffany and Company Building, 1903.

The origins of Tiffany & Co date to 1837 when Irish immigrant Charles Lewis Tiffany opened a stationery and fancy-goods shop. Within a few decades Tiffany's was one of the most prominent jewelry stores in the country. In 1869, the business began construction on a new store on Union Square, The new building at 15 Union Square West (it is the first full building at left in the photograph) was designed by John Kellum. Clad in an elaborate cast iron facade, it was an imposing sight on the square. The New York Times called it a "palace of jewels." Louis Comfort Tiffany, the son of the founder, became the firm's first Design Director in 1902, creating jewelry with glass, enamel, and gemstones.

Tiffany & Co. moved further uptown in 1906. The building on Union Square was then home to a number of garment companies and factories before becoming the headquarters for the Amalgamated Bank in 1925. In 1952 a piece of the cast iron facade fell from the building and struck a pedestrian, who later died. Following this accident the bank hired an architect to stripe the building of its projecting ornamentation and cover all the rest. The end result was a simple (almost Brutalist) white brick structure.

In 2008 the building was sold and redeveloped in condos. The original structure was surrounded by dark glass and black aluminum framing, and an additional six stories were constructed.