To change how the contents of an album are displayed
You can view the images and videos in your albums in a random grid
(except from Camera) or in stacks, sorted by the date and the location
where they were taken. You can switch album views with the Album view
switch 
at the top right of
the screen.
Drag the Album view switch
to the right to view the contents of the album in stacks.Album in Grid View
Album in Stack View
Drag the Album view switch
to the left to view the album contents in a chronological
grid (except from Camera) again.