Talk:Collections/@comment-2.220.246.88-20150819175622/@comment-25867047-20150820044145

Some of the collections can be combined to form artefacts which give you benefits if you use them, extra time for finding the objects in the pictures or solving the puzzles for example. Most just give you a set of items and/or coins when you combine the collection and that is the real reward.

Pretty much everything you need to know about the game is here in the wiki, just start reading.