Mastering skills by cloning websites

Hello guys!

I think that if you can’t think of any original projects to build, the best way to master your skills is by cloning any website you can think of.

But sometimes, it’s also hard to find cool websites to clone and test different skills, so, I think it would be a good thread if you could share some of the websites you’ve cloned, and tell about the skill it required (Easy, Intermediate, Hard), and maybe if you had to use or not JavaScript for the learners who are still trying to learn only HTML & CSS and didn’t start on JavaScript yet.