DATES: Dec. 5-7 & 12-13

LOCATION: Yerkes Observatory 373 W Geneva St, Williams Bay, WI

Witness the building of the World’s Tallest Glass Tree, live glassblowing, steel sculpting and woodworking. Alongside a Winter Market comprised of local artisans, craftspeople, and custom handmade glassware made by Mack.

NEW! All tickets include access to Yerkes Observatory to view the new renovations and the Great Refractor, the World's Largest Refracting telescope built in 1897.