20 things we've always wondered about the Mario universe

Did Mario and Peach ever... you know...

Just... like... we just want to know. For personal reasons.

Where is this mysterious other castle?

These are but a few of the things we've always wondered about the Mario universe--but what about you? Do you have other questions we didn't ask? Perhaps you have answers for the ones we did? Let us know in the comments below!

For more Mario oddities, check out our speculation on what would happen if Mario died and the top 7 most disturbing things about the Mushroom Kingdom.