15 minutes of fame per person
15 men on a dead mans chestNo.CrypticAnswer024 H in a D24 Hours in a Day126 L of the A26 Letters of the Alphabet27 D of the W7 Days of the Week37 W of the W7 Wonders of the World412 S of the Z12...
15 Men on (a) Dead Man's Chest
1969 Man finally [first] landed on the Moon
15 m x 1,000 m = 15,000 m2