Google can identify your photos

Assuming you upload your photos into Google Photos, you can search your pictures by keyword as long as you start your search with "my photos of". What makes this super interesting is that you don't have to have previously identified the content of your photos; Google is figuring it out all on it's own.

For example, all of the photos of license plates it found in my account, were taken with my phone and have dates and times as filenames. I've added no additional metadata yet it still identified the images correctly.

It is important to note that this only works when you're signed in to Google and only you can get your results.