When Mike Sorge thinks about the new expansion at the Corning Museum of Glass, he isn't thinking about glass.

Sorge, who owns Sorge's Italian Restaurant on Market Street in Corning, is more excited about the extra customers the new wing is expected to bring to his business and others.

The museum plans to unveil the highly-anticipated 100,000-square-foot North Wing on Friday, and local business owners and tourism officials are preparing for an increase in tourism spending when visitors come to Corning. Last year, more than 400,000 visitors came to the museum.