▁the ▁top ▁of ▁the ▁right ▁columns ▁is ▁a ▁green ▁man . ▁The ▁inner ▁left ▁column ▁has ▁two ▁war riors ▁who , ▁unus ually , ▁are ▁in ▁loose ▁tr ous ers . ▁The ▁outer ▁sections ▁of ▁the ▁arch ▁above ▁the ▁door way ▁show ▁cre atures ▁which ▁can ▁be ▁interpreted ▁as ▁a ▁m antic ore ▁and ▁a ▁bas il isk , ▁and ▁various ▁other ▁myth ical ▁and ▁actual ▁birds ▁and ▁be asts . ▁The ▁sem ic irc ular ▁tym pan um ▁dep ict s ▁a ▁tree ▁of ▁life . ▁ ▁For ▁many ▁years ▁the ▁south ▁door ▁was ▁hidden ▁by ▁a ▁wooden ▁por ch , ▁but ▁this ▁was ▁removed ▁in ▁ 1 8 6 8 ▁to ▁allow ▁visitors ▁to ▁see ▁the ▁car v ings ▁as ▁originally ▁intended . ▁Although ▁this ▁has ▁left ▁the ▁door way ▁exposed ▁to ▁the ▁elements , ▁the ▁sand stone ▁is ▁exception ally ▁robust , ▁and ▁its ▁condition ▁is ▁carefully ▁monitor ed . ▁In ▁ 1 9 6 8 ▁a ▁narrow ▁pro tr ud ing ▁strip ▁of ▁lead ▁was ▁let ▁into ▁the ▁mort ar ▁above ▁the ▁arch ▁to ▁protect ▁the ▁car v ings ▁from ▁water ▁running ▁down ▁the ▁wall ▁above . ▁ ▁E ight y - five ▁cor b els ▁surv ive , ▁one ▁fewer ▁than ▁are ▁illustrated ▁by ▁Lewis ▁in ▁ 1 8 4 2 ▁( origin ally ▁there ▁were ▁ 9 1 ). ▁The ▁meaning ▁of ▁most ▁is ▁obsc ure , ▁but ▁some ▁probably ▁come ▁from ▁a ▁best i ary , ▁and ▁they ▁include ▁a ▁She ela ▁na ▁G ig .