Family History photos, in albums by decade. Within the album, they're sorted by date. Once you select a photo, you can click on the "Image Info" to see date and location details. Click on any tag beneath the image to find all images with that same tag. Don't forget about the search option in the menu, it's a great way to find what you're interested in.
1890s

1890s

1900s

1900s

1910s

1910s

1920s

1920s

1930s

1930s

1940s

1940s