Historic Brashear Telescope Factory Wall Collapses

A wall, close to Pittsburgh's Perrysville Avenue, of the original factory building used by famous telescope-maker John A. Brashear, in the latter part of the nineteenth century and the beginning of the twentieth century, collapsed onto a nearby, two-floor apartment building March 16 at about 10:20 p.m., necessitating the evacuation of the apartment building.

More: http://spacewatchtower.blogspot.com/2015/03/historic-brashear-telescope-factory.html