I was watching the news and now they are saying technically it wasn't the Grand Canyon, because he crossed on the Navajo Nation part of the canyon and it has a different name. Who cares he still walked across it no matter what part it was. The Govt or park wouldn't allow him to do it over the part of the canyon they control. So the Navajo people said he could do it on their land.
Now the guy is saying he wants to walk from the Empire Building to the Chrysler Building in New York City and they are 9 blocks apart. I don't think they'll ever let him do it.