If you mean, what is it used for: it is an office building, and was designed to be one.
If you mean, why was it built that way: it was built in a triangle shape because the block it is built on is shaped that way. This is because the street known as Broadway runs in a diagonal line north/south through the city. Because most of the rest of the city is designed on a square grid pattern, some of the rectangular-shaped blocks that Broadway intersects become two smaller triangle-shaped blocks.
Flatiron Building was created in 1902.
Flatiron Building - Atlanta - was created in 1897.
It was designed to be an office building, and, to my knowledge, it has always been an office building. So, no, you cannot live in the Flatiron Building.
The web address of the Flatiron Building Heritage Center is: www.barcpa.org
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The phone number of the Flatiron Building Heritage Center is: 724-785-9331.
The address of the Flatiron Building Heritage Center is: 69 Market Street, Brownsville, PA 15417
The Flatiron Building is bordered by 22nd Street to the south, 23rd Street to the north, 5th Avenue to the west and Broadway to the east.
Flatiron building
Yes, in the early 1900's.
Billy Sunday
The building also appeared in a famous photograph from 1937 and mirrored the triangular thinness of the more-famous Flatiron Building. It was the German American Insurance Building, built in 1907 and dedicated in 1908. It and the Wolfe Building behind it were demolished in the 1970s.