So the Chicago Spire doesn't look like it's going to spire any time soon.
But Chicago does have an extremely deep, round hole to show for it.
So... what do you do with that?
Other than fill it with punch?
More than 150 proposals were submitted to the Mine the Gap competition,
Here are the proposals that won.
"We love the hole." Says the winner of the contest, Alex Lehnerer. "I think we would like it have the hole there... forever".