Park service spokesman Bill Line said Tuesday night that structural engineers found the crack where the 555-foot landmark narrows considerably.
He says the lower portions checked out fine earlier but later they found the crack. He says the monument will be closed indefinitely to keep the public safe.
An outside engineering service will study the crack on Wednesday. He says it's too early to say what would be involved in fixing it.
Source: FOX
Obelisks are phallic (penis) symbols related to the Egyptian Sun god, Ra. The 4 sides of the Washington Monument are aligned with the cardinal directions (i.e., east, west, north, and south). At the ground level each side of the monument measures 55.5 feet long, which is equal to 666 inches. The height of the obelisk is 555.5 feet, which is equal to 6,666 inches.