Obelisk

An obelisk is tall, narrow, four-sided, tapering monument which ends in a pyramid-like shape at the top, and a meant to represent a frozen ray of sunlight, especially from the sun god, Ra. They, like pyramids, can be used as a kind of portal.

Known obelisks

 * Cleopatra's Needle: Three different obelisks, located in Paris, New York, and London.
 * Luxor obelisk
 * Washington Monument