除了(le)臺北本宮(gong)外,在西元1956年,黃欉分(fen)別在北投(平埔族嗄(a)嘮(lao)別舊(jiu)址)、三峽兩地整建(jian)主祀關公的(de)寺廟,即為(wei)行(xing)天(tian)(tian)宮(gong)分(fen)宮(gong)、并稱「行(xing)天(tian)(tian)三宮(gong)」;行(xing)天(tian)(tian)宮(gong)發展至今,
除了是(shi)當(dang)地重要的民(min)間信仰外(wai),也是(shi)全臺(tai)各(ge)地信徒的景(jing)仰所(suo)在,行(xing)天(tian)宮已成(cheng)為臺(tai)灣重要的民(min)間信仰中心(xin)。廟宇古樸明凈中透露肅穆莊嚴,首創常(chang)規宗教素(su)心(xin)作風(feng);沒設功(gong)德箱,傳說靈(ling)驗市(shi)民(min)奔相走告,因此香火鼎盛游客絡繹不絕。
行(xing)天(tian)(tian)宮(gong)(gong)(gong)(gong)(gong)的歷史發展可追溯至大(da)約(yue)在西元1949年(nian),位于臺(tai)北(bei)(bei)縣樹鎮的煤礦(kuang)商人(ren)黃(huang)欉(cong)(行(xing)天(tian)(tian)宮(gong)(gong)(gong)(gong)(gong)敬稱「玄空師(shi)父」),在臺(tai)北(bei)(bei)市九(jiu)臺(tai)街(林森北(bei)(bei)路(lu)民(min)(min)權東路(lu)口(kou)附(fu)近(jin))建(jian)立了關(guan)帝廟行(xing)天(tian)(tian)宮(gong)(gong)(gong)(gong)(gong)(原為(wei)(wei)慶(qing)善堂),至1960年(nian)代初開始有(you)了將原本的關(guan)帝廟行(xing)天(tian)(tian)宮(gong)(gong)(gong)(gong)(gong)擴建(jian)的計(ji)畫,但在政府(fu)推動九(jiu)年(nian)國民(min)(min)義務教育(yu)時(shi),此地改劃(hua)為(wei)(wei)國民(min)(min)中學(xue)預(yu)定用(yong)地,歷經交涉(she)后,臺(tai)北(bei)(bei)市政府(fu)以瑠公圳(zhen)末梢(shao)支流(liu)、沼澤的公有(you)地交換,黃(huang)欉(cong)便請擁(yong)有(you)豐富建(jian)廟經驗的廖(liao)石成(cheng)設計(ji)、施工,終于在1968年(nian)行(xing)天(tian)(tian)宮(gong)(gong)(gong)(gong)(gong)順利落(luo)成(cheng);1949年(nian)黃(huang)欉(cong)在三(san)峽建(jian)立關(guan)帝廟行(xing)修(xiu)(xiu)宮(gong)(gong)(gong)(gong)(gong),但由于香客日(ri)益龐大(da),因此不(bu)得不(bu)將廟舍(she)牽至今(jin)日(ri)北(bei)(bei)投行(xing)天(tian)(tian)宮(gong)(gong)(gong)(gong)(gong)所在地,三(san)殿式的大(da)廟格局(ju)讓北(bei)(bei)投行(xing)天(tian)(tian)宮(gong)(gong)(gong)(gong)(gong)更為(wei)(wei)氣派;1962年(nian)黃(huang)欉(cong)自建(jian)白雞(ji)行(xing)修(xiu)(xiu)宮(gong)(gong)(gong)(gong)(gong),至1965年(nian)落(luo)成(cheng),形成(cheng)臺(tai)北(bei)(bei)行(xing)天(tian)(tian)宮(gong)(gong)(gong)(gong)(gong)、北(bei)(bei)投行(xing)天(tian)(tian)宮(gong)(gong)(gong)(gong)(gong)和白雞(ji)行(xing)修(xiu)(xiu)宮(gong)(gong)(gong)(gong)(gong)行(xing)天(tian)(tian)三(san)宮(gong)(gong)(gong)(gong)(gong)的系統。
行天宮供(gong)祀(si)五恩(en)主(zhu),正殿(dian)主(zhu)祀(si)關(guan)公(關(guan)圣帝(di)(di)(di)君(jun)),佛教(jiao)(jiao)稱迦藍菩薩、道教(jiao)(jiao)稱協天大(da)(da)帝(di)(di)(di),另外還(huan)有呂洞賓(孚(fu)佑(you)帝(di)(di)(di)君(jun)、呂恩(en)主(zhu))、張單(灶神(shen)、張恩(en)主(zhu))、王(wang)善(shan)(王(wang)恩(en)主(zhu))和(he)岳(yue)飛(岳(yue)恩(en)主(zhu));行天宮大(da)(da)殿(dian)左右側殿(dian)旁(pang)祀(si)關(guan)云長義(yi)子(zi)關(guan)平和(he)麾下大(da)(da)將周倉(cang),以(yi)(yi)及(ji)道教(jiao)(jiao)三清、佛祖、孔(kong)子(zi)和(he)三教(jiao)(jiao)其他(ta)神(shen)明;臺北行天宮的民俗習慣和(he)其他(ta)廟宇(yu)有些許不(bu)同,例如不(bu)燒金紙(zhi)、不(bu)拜(bai)牲禮(li)以(yi)(yi)及(ji)以(yi)(yi)添油箱代(dai)替拜(bai)斗(dou)科(ke)儀(yi)。
行(xing)(xing)天(tian)宮商場即行(xing)(xing)天(tian)宮地(di)下(xia)道,從(cong)民(min)(min)權松江路口四個(ge)角落入(ru)口進入(ru),亦可稱為算(suan)命街,與龍山寺地(di)下(xia)街合稱為「臺(tai)北市兩大(da)命理(li)區」,占地(di)約(yue)為88平方公(gong)尺,共有22家(jia)攤位(wei)(wei)以香(xiang)燭、水果、算(suan)命等攤位(wei)(wei)為主,于西(xi)元1985年營業,每天(tian)約(yue)從(cong)上午8點(dian)至晚上9點(dian),除(chu)了(le)是(shi)臺(tai)灣當(dang)地(di)民(min)(min)眾看相、問事、占卜的好去處,也(ye)是(shi)國外(wai)旅客特(te)別是(shi)日籍(ji)旅客喜(xi)愛造(zao)訪(fang)的旅游勝(sheng)地(di),讓來到行(xing)(xing)天(tian)宮旅游的民(min)(min)眾能順道至行(xing)(xing)天(tian)宮商場(行(xing)(xing)天(tian)宮地(di)下(xia)街)體驗臺(tai)灣獨特(te)的民(min)(min)俗風情。