One of Jefferson City's FAVORITE events. If you've ever been curious about some of the historic buildings in Jefferson City's core, this is an event you won't want to miss! The event will feature both finished and unfinished spaces. Come see the transformations! A map of properties and trolley route will be released the week before the event. Trolleys will be running special routes between the featured properties. Hidden Spaces is a cooperative effort of the Jefferson City Area Chamber of Commerce, Downtown Jefferson City, Inc. and the Historic City of Jefferson.