Answer:

obelisk

Answer	Crossword Clue
OBELISK	Washington Monument, e.g.
OBELISK	High point of Egyptian architecture?
OBELISK	Temple at Luxor sight

OBELISK	Cleopatra's Needle, e.g.
OBELISK	Washington Monument, for one
OBELISK	Pointed pillar
OBELISK	The Washington Monument, for one
OBELISK	Tapering pillar
OBELISK	San Jacinto Monument, for one
OBELISK	Monument in Central Park.
OBELISK	Cleopatra's needle.

OBELISK	What Cleopatra's Needle is.
OBELISK	Cleopatra's Needle is one.
OBELISK	Four-sided monolithic pillar.
OBELISK	Cleopatra's Needle.
OBELISK	Four-sided pillar
OBELISK	Printer's dagger
OBELISK	Cleopatra's Needle, for one
OBELISK	Giant stele

OBELISK	Egyptian relic
OBELISK	The Washington Monument, e.g.
OBELISK	Pillar of a community
OBELISK	Luxor Temple sight
OBELISK	Central feature of St. Peter's Square
OBELISK	Locale for hieroglyphics, maybe
OBELISK	Bunker Hill Monument, for one
OBELISK	Temple of Luxor monument

OBELISK	Object at the center of St. Peter's Square