National Harbor plans to host a Ferris wheel rising 175 feet on the banks of the Potomac outside Washington. Here are a few other famous wheels around the world.
1. Las Vegas High Roller One of the newest — and intended to be the biggest — the wheel will be completed this year. The top of the ride, placed across the street from Caesars Palace, will rise 55 stories over Sin City. Isaac Brekken/AP Buy Photo