Doors and doorways have been symbolic across cultures for as
long as history has been recorded. A door is both an entrance
and an exit, so it has been associated with portals and
passageways on many levels throughout history. Doors are closely
related to gates and thresholds because the three share some
very similar symbolic features and sometimes work together to
create passage. Doors were first seen in recorded history on
paintings inside Egyptian tombs. The ancient Romans had advanced
architectural elements and were known to have used single,
double, sliding, and folding doors. The Roman god Janus was the
god of doors and doorways, and also the god of beginnings,
endings, transitions, gates, gateways, and time. Doors still
continue to symbolize all of these elements today. Entrances: A
door is first and foremost an entrance. On a literal level a
door usually leads to the inside of something, be it a house,
building, or other structure. Within a structure itself a door
serves as both an entrance and exit to