Mercer Junction, owed and operated by forum participant Dave Minarik, is in Western Pennsylvania.
I plan to visit there again this Friday to pick up some goodies.
By the way, the Mercer Junction store layout will be featured in our June issue. Definitely an attraction to be seen when you visit there. Dave has been in business just a bit over a year, and his home layout was featured in an earlier issue of OGR. He is also one of our valued advertisers.