On the top of the obelisk is a 100-ounce aluminum cap, which acts as a lightning rod.
After years of negotiations and a tough journey, the obelisk was planted at the Place de la Concorde.
"rectangular stone column tapering at the top," 1560s, from Middle French obélisque (16c.) and directly from Latin obeliscus "obelisk, small spit," from Greek obeliskos "small spit, obelisk, leg of a compass," diminutive of obelos "a spit, pointed pillar, needle." Related: Obeliskine.