Not that I recall, was only a brief stop on the way back from Bavaria. Went in the Basilica of Constantine, though, which included some interesting displays about the city's history, including photos of the devastation caused by Allied bombing. There is a very pretty baroque palace facade around the corner from there, too, with ornamental gardens, presumably much restored. The facade vaguely reminded me of the Guildhall in Worcester, only it was much more pink.
Also went in St Gangolf church, which was picturesque.
The Porta Nigra was also quite impressive. Surprising to find such large and well preserved Roman buildings that far north.