No harness, no net, no problem!

Tightrope walker Nik Wallenda, who crossed the Grand Canyon and Niagara Falls on a 2-inch cable, has completed another remarkable feat.

This time, Wallenda walked a tightrope 60 stories above Chicago – twice!

In part one of the amazing feat - broadcast on the Discovery Channel - Wallenda walked 450 feet across the Chicago River from the Marina City west tower on an incline to a taller skyscraper across the street.

“Unfortunately I planned on doing a selfie right about here but I don’t like this movement, so I don’t think I’m going to,” he said.

Wallenda made it to the other side in about 6.5 minutes.

Then, he walked a second wire between the Marina Towers, this time while wearing a blindfold. He made it across in a little over a minute.

Wallenda broke two Guinness World Records last night – one for the highest tightrope walk on an incline and the other for the highest walk with a blindfold.

Next, Wallenda plans to recreate a stunt by his great grandfather – handstands on a tall wire over Tallulah Falls in Georgia.