Enter Through Door Number Two ... For Science!

Do you have the guts to learn about your butts?

We like big exhibits and we cannot lie.

That's why we're envious of Japan's Karada no Fushigi Daibouken -- translated as “The Mysterious Great Adventure of the Body,” according to gaming website Kotaku --  a science exhibit that lets you enter the human body through the anus, and learn something as well!

The exhibit, put on by TV Tokyo, lets kids explore the intricacies of the human body from the nose to the nethers, and learn about gross stuff, such as where poop comes from. It looks like a lot of fun:

Do you have the guts to enter through door number two? Head on over to Japan and visit the Saitama Super Arena in Saitama City before the event ends on Aug. 22.

If you can't make it, watch TV Tokyo's promo vid to see more of the awesome exhibit: