This video was published in February, but has only gone viral now and is featured on VideoSift and EbaumsWorld.

Dad spent more weekends than he could count to build a backyard roller coaster out of lumber, PVC, and concrete with a twelve foot drop for his baby girl.

And she loves it. Best dad ever. 

So who’s a cooler dad? This guy or the father who souped-up his son’s Power Wheels? They’re probably brothers.