Lisbon – been twice recommended no issues but I do get offered drugs everywhere I go so can see some of flaperon points but we are going back.
We did Vienna and Krakow last sept and both places are great…Vienna is expensive beautiful and very opera loving, in fact had more hassle off the ticket sellers for the state opera than drug dealers in Lisbon.
Krakow great city cheap great places to visit and interesting,
London is a really good call, I did a few days working there in October and actually used Boris bikes ….Good fun
Edinburgh? Again great city
Berlin is going to be cold but a city folk rave about but we found it meh