This rooftop garden is in full bloom in downtown London. Are others viable?

A diary of a city rooftop garden part 2: summer

Why You Should or Shouldn't Consider a Rooftop Garden

PPT - How to design rooftop garden

13 Of London's Best Rooftop Gardens

Garden on roof: paradise for the urban dweller

News London Economic Development Corporation

Why don't all public buildings have green roofs? Or all large

Commercial Landscaping Roof Terrace The Hippodrome Casino London

Garden on roof: paradise for the urban dweller

Rain Gardens by TD Garden - Issuu

Urban Farming, a Bit Closer to the Sun - The New York Times

Living Roof: Elevate Your Home with a Green Oasis Above