4 day adult city break in October - where?

[NCTDN]

Any particular recommendations? It's for dh and I - long time since we went away just the two of us. I know the end of October may not have a huge range of flights so need to bear that in mind. We've been away many half terms to the canaries and Balearics, but looking somewhere different. Something a bit more luxurious without breaking the bank would be great.

I'd like to explore a new city so that rules out: Barcelona, Budapest, palma, girona... (I'm sure I've been to loads more European cities but can't think which ones!!).
Thanks

Istanbul is really interesting. Lisbon or Porto also nice.

Lisbon is currently on my list for a child-free weekend.

Other suggestions would be Copenhagen, Reykjavik or Oslo (but not exactly a cheap break). Love Nice but would want to have a car to get out along the coast. Lots to do/see in Berlin or Amsterdam.

Oh yes not Amsterdam or Paris either.

Seville.

Prague
Madrid
Krakow
Dublin
Vienna

Porto is great. Seville? Valencia is lovely and very interesting mix of new and old.

I loved Oslo, although weather could be dodgy by October.

Rome?

Florence, though there's enough to do there for a longer trip.

Seville, Valletta?

NCT

Lisbon
Dubrovnik
Ljubljana
Berlin

Porto
Lisbon
Malaga
Seville
Venice
Rome

All very enjoyable for us.

For somewhere a bit different in Spain, perhaps Zaragoza, or Merida in Extramadura, taking fast trains from Madrid.

Lisbon, Porto, Dubrovnik, Sevilla

Marrakech - there are some amazing hotels there and the weather is perfect in October.

Lisbon

Another vote for Porto

I really liked Madrid. Not a beautiful 'strolling along picturesque little streets' sort of place – it's big and busy and quite gritty – but SO much to do: the Prado is a wonder, there are lots of nice bookshops and antique/flea markets, nice places to eat and drink, friendly people.

Krakow is an incredible city

We are going to Lisbon in October, I’d also like to go to Valencia

Brugge
Seville
Carcassonne

Madrid,
Istanbul- loved Istanbul- nicely exotic but great food and a metro and really is east meets west. Only 4 hours flight too

Several people mentioned Valencia- I must admit I thought Valencia was a let down- personally I Malaga was much nicer as are Seville, cordoba and Granada and Madrid

Seville, Porto, Munich or Nuremberg

Venice is fantastic
Rome
Portofino
Madrid
Barcelona
Munich
Cannes

All fantastic!

Rome. We went in October... there was a surprise around every corner and the weather was lovely.