(This diner is no longer in operation) What happens when four business partners decide to buy a very old Airstream trailer and make a restaurant out of it? The Mercury Diner happens! Last fall Scott and I noticed a very old trailer on Colorado Blvd. at the edge of Manitou Springs. We have always been fascinated with them, but this one was in about as bad of shape as it could possibly be. Next time we saw the trailer, it was sitting in a space near us at Garden of the Gods RV