Good to see that Microsoft's City Art Search (here's my original review) hasn't been abandoned, even if it's really a side project of sorts (see also my interview with its main developer at Microsoft). And, amazingly, it's a Silverlight application still - in mid-2017! Meaning that any Windows 10 branches beyond Redstone 2 won't be compatible, but in the meantime the whole of the Windows Phone and Windows 10 Mobile world is still compatible, so grab some culture and knock yourself out!
Here's the changelog for the new v18.104.22.168:
Minor UX polishing
Code optimisation and bug fixes
Data cleansing (i.e. cleaning up after itself)
Addition of new artwork to the database (now 8614 pieces of art)
All very 'Windows Phone 8.1', but this is a Silverlight app and proud. Here I'm looking at the closest listed gallery and starting to browse the works of art within it...
Switch to the HD versions of each piece and then zoom in and pan around to appreciate the artistry; there's a control - and a menu item - for the artist on Wikipedia for each piece, too.
As commented before, it's a lot of work (and fairly manual) to both capture and then manipulate and enter details of all this art into the online system, but this is a very worthwhile initiative. And completely free to you, the user. So well done to all concerned.