Which man made structure is visible from space

But if you look down on a few of these cities from space, the artificial lights create a constellation of their own, illuminating the area all around them. It measures about 2. Mining first began there in the late nineteenth century to remove gold, silver, and lead deposits. Humans have been building bridges for a long time, and we've only been getting better at it.

We've progressed from creating small bridges of logs and stones to constructing massive, carefully-engineered steel and concrete structures that are designed to support millions of vehicles every year. These giant bridges stretch across thousands of feet of water to connect land. The Palm Islands are a collection of human-made islands along the coast of Dubai. To build these islands, workers dredge sand from the bottom of the Persian Gulf, and then spray the sand to create shapes that stand out in the dark water.

Some of the islands are constructed to resemble palm trees. The island at the top of this photo is still under construction and it is created to take the shape of a world map. They cover more than 64, acres of land. Millions of tons of fruits and vegetables are grown in these greenhouses to be exported to other parts of the world. For you. Forum in focus. Read more about this project. Explore context. Explore the latest strategic trends, research and analysis.

But, there are some structures that, even miles away, are visible from ISS. The Great Pyramids of Giza. Image: NASA. More from Business Insider:. License and Republishing. Written by. More on Space View all. NASA's Landsat 9 shows how the world's surface is changing.

Could this newly discovered exoplanet reveal the fate of our solar system? How can we address space debris? Industry leaders explain Nikolai Khlystov 27 Oct However, identifying them can be a pain. Last year, astronaut Chris Hadfield caught a glimpse of what he thought was the Golden Gate, but may have really been a less-glamorous bay area counterpart. Chris Hadfield, via Universe Today.

Space-bound explorers have taken hundreds of nocturnal photos over various urban centers. Go look up a metro area near you. Wikimedia Commons. A sprawling sea of plastic greenhouses covers over 64, acres in southeastern Spain.