This thread reminds me of this twitter account which for some childish reason I find wonderfully amusing...
https://twitter.com/BestTraveI
Also a football version here:
https://twitter.com/BeautifulArenas
I had initially assumed the latter but it seems to have become the former. I'm confused which ones have been answered now but then I have had a fair few glasses of Pimm's this evening. Anyway, I'll chuck this one into the mix on the grounds that I knew Chamonix, Tuol Sleng and those stones in Orkney but was out this afternoon.
Saltzburg?