This collection is NOT designed for viewing on mobiles or tablets. The images are deliberately large to give more aesthetic pleasure when viewed on a PC with a large screen (1920 v 1080). EVEN THEN, you need to hit F11 to go FULL-SCREEN.
2)
You can use it like a quiz. VISUALIZE if possible the image of the building you select, then click to see if you were right.
3)
There are undoubtedly errors. If you find any, I would be grateful to be notified! (chrissnuggs@outlook.com)