Have you ever heard of IOOP?
 

Independent Order of Odd Fellows?

I walk past a building labeled as an IOOP Temple every day, and I've always wondered what that is.

http://www.ioof.org/aboutus.html

Sounds like some sort of religion-based fraternity that originated in Post-Reformation England. Came to America in the early 19th century and claims to be the first national fraternity to include women. I'm intrigued.

No, but I have heard of POOP.

Sounds like an alternative organization to the Masons.