Gaia | A Gaia wheat paste on Spring Garden Street. | Steve Ives | Flickr

A Gaia wheat paste on Spring Garden Street.

Source: Gaia | A Gaia wheat paste on Spring Garden Street. | Steve Ives | Flickr

Trestle Inn at the Reading Viaduct, 12th & Callowhill, Loft District, Philadelphia by PhiladelphiaPhotos on Flickr.