There are plans afoot I hear for the Chester Roman amphitheatre. That is to say that the listed house (Dee House) that you can see in the background to the picture above, and which covers one side of what would have been the amphitheatre, is now the subject of an application to "redevelop". It raise all kinds of issues about how best to incorporate the ancient heritage into the modern city-scape.
It goes without saying that if there is any new building, it should be properly investigated with the trowel first. But what then? One idea is that it should become a heritage site, and we should let people see the other side of the amphitheatre, which has always been covered (and there is a petition more or less to this effect here). My heart is with them, but my head wonders a bit about how much heritage sites (as simple sites) can be a popular and lucrative focus of local tourism in themselves.
I think that it is interesting, at least, that the Richard III Visitor Centre in Leicester has not made its visitor targets. They were aiming at 100,000 people a year and have managed 80,000. That is maybe a victory. It has certainly brought a load of visitors, and money into Leicester, even if it hasn't met the target. But how much longevity it has in the long term remains to be seen. I still predict that in 15 years the visitor centre will be up for the highest bidder. But I would be very happy to be proved wrong,