Cities in the sky: Golden Gate Bridge

Photo: Francesco Carucci/Shutterstock

As humans build their steel and concrete jungles higher and higher into the heavens, the peaks of many skylines can be seen reaching well beyond the tops of clouds. From the ground, this appears as though someone has taken a massive eraser to the towering structures, but from a bird's-eye view, the clouds form what looks like an otherworldly ocean that laps at the sides of the buildings.

In the image above, the Golden Gate Bridge in San Francisco beams its iconic orange hue above the cool clouds engulfing the rest of the city. Continue below for more examples of this picturesque urban phenomenon, from Dubai to London to Hong Kong.

* * * 
Cities in the sky: Dubai marina

Photo: hainaultphoto/Shutterstock

Dubai, United Arab Emirates

* * * 
Cities in the sky: Jilin

Photo: STR/AFP/Getty Images

Jilin, China

* * * 
Cities in the sky: Brooklyn Bridge

Photo: spirit of america/Shutterstock

Brooklyn, New York City

* * * 
Cities in the sky: Westminster

Photo: Bikeworldtravel/Shutterstock

Westminster Abbey, London

* * * 
Cities in the sky: Melbourne

Photo: David Dusink/Wikimedia

Melbourne, Australia

* * * 
Cities in the sky: Kowloon

Photo: Daniel Sorabji/AFP/Getty Images

Kowloon, Hong Kong

* * * 
Cities in the sky: Burj Khalifa

Photo: Naufal MQ/Shutterstock

Burj Khalifa, Dubai, United Arab Emirates

* * * 
Cities in the sky: Yantai

Photo: ChinaFotoPress/Getty Images

Yantai, Shandong, China

* * * 
Cities in the sky: Auckland

Photo: Phil Walter/Getty Images

Auckland, New Zealand

* * * 
Cities in the sky: Stanley Peninsula

Photo: Voishmel/AFP/Getty Images

Stanley Peninsula, Hong Kong

* * * 
Catie Leary is a photo editor at Mother Nature Network. Follow her on Twitter and Google+.

Catie Leary ( @catieleary ) writes about science, travel, animals and the arts.