Is there something bigger than London eye?

Yes, there are several Ferris wheels in the world that are taller than the London Eye. Here are a few examples:

* High Roller (Las Vegas, United States): Height - 167.6 meters (550 feet)

* Singapore Flyer (Singapore): Height - 165 meters (541 feet)

* Star of Nanchang (Nanchang, China): Height - 160 meters (525 feet)

* Ain Dubai (Dubai, United Arab Emirates): Height - 210 meters (689 feet)

The Ain Dubai is currently the tallest Ferris wheel in the world.