The Eastern New England chapter of the European Train Enthusiasts is a group that shows a European modular layout every January at the Big E Show in Springfield, Mass. They're always in the hall that's the closest to the parking lots.
Their catenary system is incredible:
The layout is in HO, but it's excellent. I look forward to visiting it the whole day while walking the rest of the show. They're nice guys, too.
If you're into European trains, be sure to look for them next time you go to the Big E.
Steven J. Serenska