Mark Rybicka of Westmont checks the light bulb for the North Pole post office in Hinsdale's Burlington Park. | Kimberly Fornek—Sun-Times Media

Bogdan Nowowiejski hands up the globe for the top of the North Pole to Mark Rybicka. Workers readied the North Pole Post Office and Santa's Workshop in Burlington Park for Hinsdale's Christmas Walk Nov. 30. | Kimberly Fornek—Sun-Times Media

Mark Rybicka of Westmont replaces a light bulb at the North Pole post office set up in Hinsdale's Burlington Park where children can mail letters to Santa Claus. | Kimberly Fornek—Sun-Times Media

Workers get the North Pole Post Office ready in Burlington Park where holiday activities will take place and in Hinsdale businesses beginning Nov. 30. | Kimberly Fornek—Sun-Times Media

Workers get the North Pole post office ready in Burlington Park where holiday activities will take place and in Hinsdale businesses beginning Nov. 30. | Kimberly Fornek—Sun-Times Media

Clare McNamara, 6, (left), Maddie Murray, 7, and Colin Murray, 5, (right) check out Santa's post office in Burlington Park, where they can mail their letters to Santa Claus. Santa will be there in person during Hinsdale's Christmas Walk Nov. 30.

Mark Rybicka of Westmont replaces a light bulb at the North Pole post office set up in Hinsdale's Burlington Park where children can mail letters to Santa Claus. | Kimberly Fornek—Sun-Times Media