drum kit – Learn to Play Music Videos

What's the best way to learn to play drums?

Does it really make a difference if I don’t have a drum kit?

Is it possible to learn to play the drums without buying a drum kit or taking lessons?

I don’t want to take lessons and I don’t have the space/money for a drum kit. What can I do? I really want to learn the drums. Also, how hard is it to learn compared to piano and guitar?