I accidently hit a key combo and it messed up my view My hands accidentally fumbled over the keyboard and the 3d view ended up with a dark volume that extends out forever from a point. Anything outside that view is hidden. I am unable to recover the file for some reason and may of just lost about 20 hours of work as I am unable to find out what I did.
You can try this:
File > Load Factory Settings.

Of course, this will reset any custom settings you set up.

I don't know what that thing is. Kinda looks like a lamp. Try alt+H to un-hide everything? Or check other layers? 

Sorry about your lost work. Did you check .blend1 files?