Aside from being the one of the most visited tourist spots in the world, the Eiffel Tower is now also a spot for sustainable wind energy. According to CNET, two wind turbines have recently been installed onto the tower, giving the structure enough power for the entire first floor of the souvenier shop.

The vertical-axis turbines have been situated on the tower's second level, about 400 feet from the ground, and are embedded within the exterior structural confines, so they blend in with the site. They were also treated with the same finish as the tower, and produce virtually no sound, so they are neither a visual or audible nuisance to tourists and locals. Able to catch wind from any direction, the sustainable tools can produce up to 10,000kWh per year. Read More