<http://schema.org/about>
"The roof garden at Toronto's City Hall had formerly been an abandoned and desolate space around a podium.  The building itself was architecturally acclaimed when it was built 45 years ago but the podium area never quite worked. "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.treehugger.com/sustainable-product-design/green-roof-revisited-at-toronto-city-hall.html>