長安(an)寺(si)坐北(bei)朝南，三(san)(san)進四合院。自(zi)南向北(bei)在(zai)中(zhong)軸(zhou)線(xian)上依次建(jian)有(you)山(shan)(shan)門(men)、天王(wang)殿(dian)(dian)(dian)(dian)(dian)、戲(xi)臺(tai)、拜殿(dian)(dian)(dian)(dian)(dian)、大(da)殿(dian)(dian)(dian)(dian)(dian)和(he)后殿(dian)(dian)(dian)(dian)(dian)等(deng)建(jian)筑(zhu)。中(zhong)軸(zhou)線(xian)兩側(ce)對稱排列著配房、鐘鼓樓，歇山(shan)(shan)式(shi)，建(jian)在(zai)磚筑(zhu)高臺(tai)之(zhi)上。天王(wang)殿(dian)(dian)(dian)(dian)(dian)，三(san)(san)楹(ying)(ying)，硬山(shan)(shan)式(shi)。戲(xi)臺(tai)，與(yu)天王(wang)殿(dian)(dian)(dian)(dian)(dian)緊(jin)密相連，一楹(ying)(ying)，卷(juan)棚(peng)歇山(shan)(shan)式(shi)。拜殿(dian)(dian)(dian)(dian)(dian)亦卷(juan)棚(peng)歇山(shan)(shan)式(shi)，三(san)(san)楹(ying)(ying)敞廳。左(zuo)右(you)兩側(ce)是配殿(dian)(dian)(dian)(dian)(dian)，各五楹(ying)(ying)，前面出檐(yan)。拜殿(dian)(dian)(dian)(dian)(dian)與(yu)配殿(dian)(dian)(dian)(dian)(dian)，配殿(dian)(dian)(dian)(dian)(dian)與(yu)戲(xi)臺(tai)，以(yi)抄(chao)手回廊(lang)銜(xian)接。大(da)殿(dian)(dian)(dian)(dian)(dian)三(san)(san)楹(ying)(ying)，歇山(shan)(shan)式(shi)，與(yu)拜殿(dian)(dian)(dian)(dian)(dian)共同建(jian)在(zai)50厘米(mi)高的(de)臺(tai)基之(zhi)上。大(da)殿(dian)(dian)(dian)(dian)(dian)是長安(an)寺(si)的(de)主(zhu)體(ti)(ti)建(jian)筑(zhu)，體(ti)(ti)量大(da)，形制也較(jiao)(jiao)(jiao)宏偉。后殿(dian)(dian)(dian)(dian)(dian)在(zai)寺(si)院的(de)最北(bei)端，三(san)(san)楹(ying)(ying)，歇山(shan)(shan)式(shi)。寺(si)內建(jian)筑(zhu)的(de)木(mu)構件，如梁、柱、枋、額(e)、檁、椽、飛(fei)子和(he)斗栱(gong)等(deng)皆油飾彩畫，瀝粉貼(tie)金(jin)，金(jin)碧(bi)輝煌。寺(si)內現存明清碑(bei)刻六甬，其中(zhong)以(yi)明成化二十三(san)(san)年重(zhong)修(xiu)長安(an)禪(chan)寺(si)碑(bei)為(wei)較(jiao)(jiao)(jiao)早(zao)，也較(jiao)(jiao)(jiao)重(zhong)要。碑(bei)文(wen)記載了沈陽中(zhong)衛指揮曹輔和(he)曹銘的(de)銜(xian)名，據(ju)考，二人(ren)皆為(wei)《紅樓夢》作者(zhe)曹雪芹的(de)上世(shi)族(zu)祖(zu)，是研(yan)究曹雪芹家世(shi)出身(shen)的(de)重(zhong)要史料。
寺院建(jian)筑有(you)山(shan)門、天王(wang)殿(dian)(dian)(dian)(dian)、戲樓(lou)、拜(bai)(bai)殿(dian)(dian)(dian)(dian)、大(da)(da)(da)殿(dian)(dian)(dian)(dian)、后(hou)殿(dian)(dian)(dian)(dian)，均由南向北(bei)建(jian)在一條中軸線上。山(shan)門三間(jian)(jian)(jian)進(jin)山(shan)門后(hou)有(you)東(dong)西(xi)配殿(dian)(dian)(dian)(dian)、鐘鼓二(er)(er)樓(lou)。北(bei)面正中為天王(wang)殿(dian)(dian)(dian)(dian)，面闊三間(jian)(jian)(jian)，進(jin)深一間(jian)(jian)(jian)，小式硬(ying)山(shan)造(zao)，灰瓦(wa)(wa)頂，殿(dian)(dian)(dian)(dian)內露明造(zao)。天王(wang)殿(dian)(dian)(dian)(dian)兩側(ce)有(you)一磚(zhuan)墻與(yu)二(er)(er)進(jin)院相隔。從(cong)角門進(jin)入，便是二(er)(er)進(jin)院落。緊接天王(wang)殿(dian)(dian)(dian)(dian)后(hou)壁有(you)戲樓(lou)一座，兩檐相連成為一體(ti)，戲樓(lou)面閣小于(yu)天王(wang)殿(dian)(dian)(dian)(dian)，呈正方形(xing)一大(da)(da)(da)間(jian)(jian)(jian)，為券棚頂、灰瓦(wa)(wa)、檀枋彩畫，風格獨特。東(dong)西(xi)兩側(ce)建(jian)有(you)配殿(dian)(dian)(dian)(dian)五間(jian)(jian)(jian)。正北(bei)為長(chang)安寺主要建(jian)筑拜(bai)(bai)殿(dian)(dian)(dian)(dian)和大(da)(da)(da)殿(dian)(dian)(dian)(dian)。在天王(wang)殿(dian)(dian)(dian)(dian)、東(dong)西(xi)配殿(dian)(dian)(dian)(dian)、拜(bai)(bai)殿(dian)(dian)(dian)(dian)的空間(jian)(jian)(jian)，建(jian)回(hui)廊四(si)座，把二(er)(er)進(jin)院內的建(jian)筑連在一起，頗具特色。
寺院坐北(bei)朝南(nan)，呈(cheng)長方形，占(zhan)地5200平方米(mi)，有房屋 130多間(jian)。主要建筑自(zi)南(nan)向北(bei)有：山門三間(jian)，內(nei)有東西(xi)配殿和鐘鼓(gu)二樓，天(tian)王(wang)殿、大雄寶殿、比(bi)丘壇、藏經(jing)閣。天(tian)王(wang)殿主要供奉“四(si)大天(tian)王(wang)”，大雄寶殿供奉“西(xi)方三圣”和八十八尊羅漢。
大(da)殿為(wei)(wei)單檐(yan)歇山結構，灰瓦頂，斗拱為(wei)(wei)三(san)翹七(qi)踩，保留著明(ming)朝建(jian)筑(zhu)風格，面(mian)闊五間(jian)，進深三(san)間(jian)，殿內(nei)露明(ming)造，檀(tan)枋(fang)有(you)彩(cai)畫。南面(mian)緊接大(da)殿前檐(yan)的拜殿為(wei)(wei)券棚屋頂，灰瓦，面(mian)闊四間(jian)，進深一(yi)間(jian)，前后無墻壁。東西(xi)兩(liang)側壁上嵌有(you)道光時期重修碑(bei)(bei)記兩(liang)通，殿內(nei)露明(ming)造，檀(tan)枋(fang)上均有(you)彩(cai)畫，斗拱為(wei)(wei)三(san)翹七(qi)踩。在拜殿東西(xi)側角(jiao)門處豎立清朝重修碑(bei)(bei)四通。
第三(san)進院內正北為后殿(dian)，單(dan)檐歇山造(zao)，灰(hui)瓦頂，面(mian)闊五(wu)間(jian)，進深三(san)間(jian)，殿(dian)內露(lu)明造(zao)檀(tan)枋彩畫(hua)。其東(dong)西兩側各建有配殿(dian)三(san)間(jian)，后殿(dian)西北角(jiao)建有方丈室(shi)一(yi)座。
長(chang)安(an)(an)寺(si)內現存《大正藏(zang)》兩(liang)部，石碑(bei)六(liu)通(tong)，其中明(ming)成化二十三年（1487年）《重(zhong)修沈(shen)(shen)陽(yang)(yang)長(chang)安(an)(an)禪寺(si)碑(bei)》有(you)(you)重(zhong)要的(de)文物(wu)價值。碑(bei)文不僅記述了沈(shen)(shen)陽(yang)(yang)中衛指揮曹銘(ming)的(de)銜(xian)名。經專家(jia)考(kao)驗，曹輔、曹銘(ming)都是(shi)《紅樓(lou)夢》作者曹雪(xue)芹(qin)(qin)的(de)上世(shi)族祖，這是(shi)曹雪(xue)芹(qin)(qin)上世(shi)“世(shi)居沈(shen)(shen)陽(yang)(yang)”的(de)可靠(kao)證據。這塊碑(bei)是(shi)研究曹雪(xue)芹(qin)(qin)家(jia)世(shi)出身的(de)極其重(zhong)要的(de)史料。 關于沈(shen)(shen)陽(yang)(yang)市和長(chang)安(an)(an)寺(si)的(de)關系(xi)，歷來(lai)有(you)(you)“先有(you)(you)長(chang)安(an)(an)寺(si)，后有(you)(you)沈(shen)(shen)陽(yang)(yang)城(cheng)(cheng)”的(de)說法，又說：“廟在城(cheng)(cheng)中，城(cheng)(cheng)在寺(si)里。”事實也確是(shi)如此，長(chang)安(an)(an)本(ben)寺(si)和山(shan)門(men)(men)相(xiang)距甚(shen)遠，本(ben)寺(si)在沈(shen)(shen)陽(yang)(yang)城(cheng)(cheng)大北門(men)(men)以南、鐘(zhong)樓(lou)以北，而寺(si)的(de)山(shan)門(men)(men)卻建在十五里外的(de)渾河岸邊。
相傳，唐太宗(zong)建(jian)都(dou)時，沈陽這(zhe)塊地方還(huan)是(shi)一(yi)片荒原。唐太宗(zong)東巡(xun)來到這(zhe)兒，人困馬乏，就地休息，看見遠處有個土崗，雖然不高，可樹木很(hen)多，遮(zhe)天蔽日，便起念在(zai)此建(jian)寺。于是(shi)派尉遲敬德為(wei)監(jian)督(du)，負責建(jian)寺諸事。
在(zai)籌建(jian)(jian)過(guo)程中，將軍得(de)到緊急(ji)作戰命令(ling)，匆(cong)匆(cong)離寺。僧人們此(ci)時(shi)還不知道把(ba)山(shan)(shan)門建(jian)(jian)在(zai)什么地方(fang)，就派人飛(fei)馬(ma)鞭一指(zhi)(zhi)，又急(ji)忙上路了。于是，僧人就帶(dai)領工(gong)匠們在(zai)渾(hun)河北岸尉遲(chi)將軍馬(ma)鞭所指(zhi)(zhi)處建(jian)(jian)起(qi)了山(shan)(shan)門。斗轉星移(yi)。在(zai)山(shan)(shan)門和大殿這(zhe)間(jian)，就漸(jian)(jian)漸(jian)(jian)建(jian)(jian)起(qi)了沈陽城，形成了“城在(zai)寺里”的局(ju)面。
長安(an)寺(si)內共存有(you)明(ming)、清碑(bei)(bei)(bei)刻六甬，其中以明(ming)成(cheng)(cheng)化二(er)十三年《重修沈(shen)陽(yang)長安(an)禪(chan)寺(si)碑(bei)(bei)(bei)為最早，碑(bei)(bei)(bei)文不(bu)僅(jin)記述(shu)了重修長安(an)寺(si)的(de)(de)歷史(shi)，還提到(dao)明(ming)天(tian)順二(er)年沈(shen)陽(yang)中衛指揮曹(cao)(cao)(cao)輔，碑(bei)(bei)(bei)陰又有(you)成(cheng)(cheng)化二(er)十三年沈(shen)陽(yang)中衛指揮曹(cao)(cao)(cao)銘的(de)(de)銜名(ming)，經(jing)考(kao)證，曹(cao)(cao)(cao)輔、曹(cao)(cao)(cao)銘都是《紅樓夢(meng)》的(de)(de)作(zuo)者曹(cao)(cao)(cao)雪芹之上世族(zu)祖，這(zhe)是研究曹(cao)(cao)(cao)雪芹家世出身的(de)(de)又一件極其重要的(de)(de)碑(bei)(bei)(bei)刻史(shi)料。
1985年(nian)2月，沈陽市人民政府(fu)公布(bu)為市級(ji)文物保(bao)護(hu)單位，并撥款進(jin)行大力(li)重修，經過(guo)二年(nian)時間(jian)已恢復原貌(mao)，建(jian)立了(le)長安寺文物管理所，于1986年(nian)9月正式對外開放。1988年(nian)12月遼寧(ning)省人民政府(fu)公布(bu)為省級(ji)文物保(bao)護(hu)單位。
交通路線：沈陽市內乘坐地鐵(tie)一號線在中街站下步行即可到達。
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