Last built-for-flight external tank lifted into place for space shuttle Endeavour exhibit 

 NASA's last-existing, built-for-flight space shuttle external tank took to the sky, briefly leaving the ground to become part of the California Science Center's space shuttle Endeavour exhibit. 

https://cdn.mos.cms.futurecdn.net/D3qu5PbbE3btzU6nEaMQt7.jpg

https://www.space.com/shuttle-endeavour-exhibit-external-tank-lift