The rich and colorful history of Jefferson Barracks will come alive while you ride over the grounds of this old military post. You’ll be led by a historian as you “bike through time” by visiting various historic buildings and numerous interpretative panels containing historic information and photos. The complete journey will not exceed two hours and cover up to 7 miles. Advanced registration required through the St. Louis County website or by calling 314-615-8800. Sunday May 20 at 9 a.m. and 1 pm. $5 per person ages 13 and up. 5 per person