In a small saucepan, combine water and sugar. Bring to a boil over medium heat and simmer until sugar melts. Cool completely.

In a large pitcher, combine simple syrup, pomegranate juice, and lemon juice. Stir well. Before serving, add seltzer to the mixture. Place lemon slices in cups, fill with ice, and pour pomegranate lemonade. Garnish with mint leaves and serve. Enjoy every sip!