The Urban Land Institute wants to convert Houston's Astrodome into "massive indoor park," but project has pricetag of $243 million.

"A nonprofit group estimates that it would cost nearly $243 million to convert the iconic but shuttered Houston Astrodome into a massive indoor park and surrounding green space. The Urban Land Institute on Monday released its final report on the Astrodome proposal, saying the stadium 'can and should live on.'" -- Associated Press