HistoryMiami hosts a downtown Miami walking tour that will cover the earliest urban settlement area in the city, downtown Miami, and explore the 10,000 years of history that made South Florida what it is today. 11 a.m.-1 p.m. HistoryMiami, 101 W Flagler St., Miami. $20 members. $30 others. Details: (305) 375-1621 or firstname.lastname@example.org or www.historymiami.org/tours.