Going underground

Be handy if you lived in Oklahoma to duck tornadoes

I think he forgot to come up for air a few too many times.

Interesting, but, how much soil will those roof arches support, and if soil is rather thin, with that much roof surface/room volume, a tornado overhead will open it like a can of beans.

Hope owner never finds out.

edit never mind, I see on video he poured a concrete roof, etc