Airbus A380
Airbus was going to make a version of the A380 to carry cargo instead of people.  This would look almost the same as the normal passenger version, but with no windows and much bigger doors.  Some cargo companies ordered the plane, like FedEx and UPS.  Because Airbus took too long to make the A380 freight version, those orders were canceled.  Because Airbus has not gotten any orders for the plane anymore, they decided to not make the freighter version for a while and focus on making the passenger version of the A380.