Click on the ruby slippers.  When you get to the link, see the special "Easter Egg" that Google planted the year this movie turned 80 years old and click the slippers again...  Something magical will happen.  :)  Click the image again and see what happens next...

Here's a summary of how it worked:

https://dalesjewelers.com/blog/2019/08/26/google-celebrates-80th-anniv-of-the-wizard-of-oz-with-ruby-slipper-surprise/