Salesforce has released a new section under Trailhead called Superbadges, and they’re pretty awesome.
So if you’re familiar with Trailhead Projects, Superbadges are very similar to these but instead of guiding you through the process, you are given a set of requirements and you are required to implement it. All of the badges have requirements that you must meet before you can even start them. This is nice because it encourages you to learn the content before diving in. This way, the challenge of the badge is just building on your existing skills instead of teaching you new ones. For the first release, there are four Superbadges that you can earn: