
The skeleton is in place and the sides are filling in.
This picture is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication, so no permission is needed to use it for any purpose whatsoever.

The skeleton is in place and the sides are filling in.
This picture is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication, so no permission is needed to use it for any purpose whatsoever.

Henry Hornbostel’s only real skyscraper was briefly the tallest thing in Pittsburgh when it opened in 1929, before being surpassed two years later by the Gulf Building. It’s famous for the air beacon on top—red until recently, but now green to match the logo of the Huntington Bank—that flashes “Pittsburgh” all night in Morse Code. Behind and to the left, the building with three enormous arches is Hornbostel’s City-County Building.
One of sixteen buildings designed by the great Beaux-Arts master Daniel Burnham, the Oliver Building, finished in 1910, is typically elegant, and its scale is magnificent. It spans a whole city block. The back of it is a typical tripartite division that allowed large buildings like this to have more windows, more cross-ventilation, and possibly more of those desirable corner offices.
The Tower at PNC Plaza, Pittsburgh’s biggest new skyscraper since the 1980s, is still rising. Some of the exterior shell is appearing at lower levels, even though the skeleton hasn’t topped out yet. Here we see it from the Diamond (which is spelled “Market Square” on maps). Earlier pictures are here and here.