Credits

"1 hongkong panorama victoria peak 2011" by chensiyuan - chensiyuan. Licensed under CC BY-SA 3.0 via Wikimedia Commons.

"Port of Oakland A" by Ingrid Taylar - Flickr: Port of Oakland. Licensed under CC BY 2.0 via Wikimedia Commons.

By USAF [Public domain], via Wikimedia Commons

"South San Jose (crop)". Licensed under CC BY-SA 2.5 via Wikimedia Commons.

Chris J Dixon [CC-BY-SA-2.0], via Wikimedia Commons

By Murray 1010 (Own work) [CC-BY-SA-3.0], via Wikimedia Commons

By Oliversb (Own work) [CC-BY-SA-3.0], via Wikimedia Commons

"Korea busan pusan harbour cargo container terminal" by Martin Pueschel Eastberliner - Own work. Licensed under CC BY-SA 3.0 via Wikimedia Commons.

Middelgrunden wind farm 2009-07-01 edit filtered“ von Photo by Kim Hansen. Postprocessing (crop, rotation, color adjustment, dust spot removal and noise reduction) by Richard Bartz and Kim Hansen. - Eigenes Werk. Lizenziert unter CC BY-SA 3.0 über Wikimedia Commons.

By M.O. Stevens (Own work) [GFDL or CC-BY-SA-3.0-2.5-2.0-1.0], via Wikimedia Commons

By Bryghtknyght (Own work) [CC-BY-3.0], via Wikimedia Commons

Paweł Zdziarski [CC BY-SA 3.0], via Wikimedia Commons