By Lindsey Olander
Updated: January 24, 2017

The Eiffel Tower has received its fair share of quirky updates these past few years—an ice skating rink, a vertigo-inducing glass floor—but this may be its most important yet. As part of the tower’s first major retrofit in 30 years, New York-based renewable energy provider UGE designed and installed two vertical-axis wind turbines above its second level.

The turbines are painted bronze to blend with the surrounding iron scaffolding, and will unobtrusively generate 10,000 kilowatt-hours of electricity annually. It sounds more impressive than it is; the structure actually consumes 6,700,000 kilowatt-hours a year. Still, it’s a symbol of larger, citywide effort. Paris aims to eliminate 25 percent of greenhouse gas emissions and source 25 percent of its energy from renewable sources by 2020.

Lindsey Olander is an Assistant Editor at Travel + Leisure.