A building downtown close to the Southern Theater. Three floors, possibly. Hosts weddings and other events.
For those of you who attended, it's where Scott Haynes (formerly of Miranda Sound) and his wife got married.

WHAT IS THE NAME OF THIS BUILDING???

i was gonna say but it's more like 6 floors

The Anetheum? (I have no idea if that's how it's spelled). Probably not. That place is on 4th (I think)

i think the spelling is Atheneum
Masonic Temple (renovated as Columbus Atheneum). Later incorporated the Corrodi Hotel.
Address 34 4th St N
this was the only picture i could find...

Is it the Hartman Building? They have a ballroom upstairs that they have rehabbed that's really sweet. I know they rent it out.

I doubt it's the one you're thinking of but here's a pic:

i would suggest germania house in the brewery district - depending on how formal the "event in question" is going to be."

it's a pretty cool building and has an awesome layout and was pretty cheap.

That's definitely the most difficult building to spell in Columbus. Tuxspeedo got it, though. It's Athenaeum.