I used to drive past this old Abbey gate on the way to work every day whilst I lived in Lincolnshire. The gatehouse is virtually all that remains of the old Thornton Abbey other than some walls of the old cloister house beyond. The building is one of the earliest examples of the large scale use of brick construction in England and unlike the main Abbey is fully intact.
The abbey was originally founded in 1139, but like many others in England was closed by King Henry VIII and his Dissolution of the Moansteries Act. The Abbey remained open for a while as a secular college before finally closing in 1534 and then falling into disrepair.