I don't think this is much of a 'trap'. But it is what Grand Saline has to offer, though I've never seen it.
Grand Saline is so named because it sits on a large deposit of salt. Apparently there is a house that is built entirely of blocks of salt... I'll need to see it eventually.
BEER! Grand Saline is in a 'dry' county, which means you can't buy alcohol there. It's about a 45 minute drive to the nearest beer barn (in Terrell) so you'd better bring enough to last you all weekend.
Oh, grab an extra 18 pack, just in case.