Connected Doors

You touch a door and magically link it to another door within 300 ft. that you have touched previously. 

Until the spell ends, opening either door causes the other one to open at the same time. You and any creature you choose can walk through either door to emerge through the other door, and vice versa. When opening the linked doors, you can choose which direction it swings, regardless of how it is normally mounted.

If you cast this spell on the same two doors every day for 7 days, the spell lasts until it is dispelled.