Carrying on from bridge fetish's are you going over the Severn Bridge towards Chepstow ? That is amazing to ride over. Also you have Tintern Abbey just up the road from there and a nice stop off for food at the Old Station not far from Tintern.
That's the road we took from Chepstow to Monmouth. Really good road, especially once you've done all the clmbing. Have got some great pics of Tintern Abbey.