A portal in the backyard

No.

How about nope

But...the outernet is scary.

Wise words from sircuddlebuns.

You're gonna try and tell me this isn't a portal to another world? Okay, yeah sure. You can have fun with your ignorant, stupid, wrong opinion. Meanwhile, I'll be on my way to Narnia or some magical place like that. And you're NOT invited. Hmph.

TO NARNIA!!

He's just trying to keep people from realizing the truth

In all seriousness that does look like a portal.