takes 
Sometimes I'll see an interesting game at a convention, but it can be hard to get a good photo when excited players are pressing around the table... and I'm hesitant to interrupt their fun.
Here's something I spotted at Council of Five Nations in 2011 - it could be a dungeon-dive, but more likely a subterranean battle...
I dodged to the other end of the table to get a better shot... (not so good...)
Another dodge... better...
...and finally, a somewhat fuzzy zoom shot.
It looks to be a portable gaming table, built around several box bottoms. If you know more, feel free to make a comment...