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16. Washington Nationals

Hop the Metro down to Navy Yards and watch the defending NL East champion Washington Nationals, as they go for a second-straight division title. Saturdays and Sundays, Harris Teeter offers packages, where a $19 ticket price includes the seat, a hot dog, a bag of chips and one Coca-Cola/Dasani beverage. Cost: $19. Address:1500 S. Capitol St. S.E. Website: http://washington.nationals.mlb.com/was/ticketing/family_fun_days.jsp JONATHAN ERNST / REUTERS