Nik Wallenda announces new daredevil stunt

Nik Wallenda has announced his latest daredevil stunt.

He plans to walk untethered on top of a 400-foot observation wheel in Orlando, Florida.

The Orlando Eye will be moving when he attempts his feat April 29.

The attraction officially opens in May.

Wallenda recently walked across a tightrope over Chicago.

He has also braved Niagara Falls and the Grand Canyon.