The resting place for more than 25,000 victims of three American Wars - World War II, Korean War and Vietnam War – this is truly the “Cemetery of Heroes.” Punchbowl was formed some 75,000 to 100,000 years ago during the Honolulu period of secondary volcanic activity. A crater resulted from the ejection of hot lava through cracks in the old coral reefs that, at the time, extended to the foot of the Koolau Mountain Range. Of special note is a monument honoring Hawaii-born astronaut Ellison Onizuka, who perished aboard the Challenger space shuttle in 1986. Also noteworthy are the Courts of the Missing, white stone tablets bearing the names of those missing in action from World War II.