I do have to question why you got the credit card and accrued points in the program to begin with if you had no interest in staying in any of their hotels or if there aren't any "nice properties worth staying at?" Should that not have been something to consider before racking up points in the program?

There are some very nice properties to consider and most have been discussed in the numerous threads on the "best" or "aspirational" Radisson properties. If you personally don't find any of those are to your liking then there is nothing else anyone else can suggest. There's not going to be any new hotels to pick from before the cc benefits is dropped so your just going to have to pick the best of the worst if you want to take advantage of the benefit.

Hotels in London, Madrid, Dubrovnik, Amsterdam, Berlin, Moscow, Paris, Vienna, Istanbul, Gran Canaria, etc. are going to be the "best" of the bunch.