The gallery in Sofia in which I sadly found no (modern) Roman emperors was the recently restored National Gallery. It seems that the old National Gallery of Bulgarian Art is mostly in mothballs, though it still holds the ethnographic collection (ie Bulgarian national costumes) and also attached to that a small display of gifts made to earlier heads of state. Below is a leather coat presented to Mr Zhivkov by a delegation from Mongolia (and there was much else along the same lines as you can glimpse).
The main collection has been moved to what was the Gallery of Foreign Art, which now has a wonderful extension at the back -- which is one of the very best modern museum extensions I have seen, although photos dont really do it justice.
On the morning I visited, it was full of kids (right) doing wholesome things such as they do in museums amongst what I might call the "ethnographica", which was indeed beautifully displayed. That apart, I didnt quite think that they collection itself quite came up to the building, although I found a soft spot for some of the modern Bulgarian art (which had not been consigned to the Museum of Socialist Art). This included the rather elegant "cement factory" from 1987 (on the left) , and plenty more of that easy-on-the-eye type.
But strangely, once I'd skipped the archaeological museum (probably an error), I found it was my hotel that offered the best classical remains, heading up this post.