Google Photos has a "Auto Backup" feature which allows you to backup photos and videos automatically. You just need to turn ON "Back up & sync". You will see your photos and videos from Google Photos in Google Drive. Google Photos has a "Google Photos library" where you can see uploaded photos and videos using Google Photos or Google+.
Quick Tip to ensure your Photos never go missing
Photos are precious memories and all of us never want to ever lose them to hard disk crashes or missing drives. PicBackMan is the easiest and simplest way to keep your photos safely backed up in one or more online accounts. Simply download PicBackMan (it's free!), register your account, connect to your online store and tell PicBackMan where your photos are - PicBackMan does the rest, automatically. It bulk uploads all photos and keeps looking for new ones and uploads those too. You don't have to ever touch it.