The new section features their new user interface guidelines and is now streamlined.
You can sort the doodles easily based on time and country.
Google spoke about the update:
We just updated our doodle site, so it’s easier for you to browse, watch or play with all your favorite Google doodles. Revisit PAC-MAN, Les Paul and more than 1,000 others at http://www.google.com/doodles/.