I regularly travel up the M6 Northbound from Catthorpe, heading to any number of places oop North. I used to love to see the ‘Stargate’ that was plainly visible just before J2 (Coventry). Alas, about 8 months ago, the ‘Stargate’ was moved from the centre of the field to the edge, and has now been bulldozed completely.
If you are interested, this is what it looked like: