(KhajuBridge):伊朗,伊斯法罕伊朗,伊斯法罕。除了让人瞠目的石基之外,色彩鲜明的瓦片及17世纪的独创绘画,也让这座桥惹人注目。而且它同时发挥三项功能--通道、拦河坝及休闲场所。,属于剑桥大学圣约翰学院,建于1831年,跨越康河。建筑师是亨利·哈钦森。它得名于威尼斯的叹息桥,虽然它们在建筑上几乎没有什么共同点,除了它们都是廊桥以外。这座桥是剑桥的主要旅游景点之一,据说维多利亚女王喜欢它胜过该市其他所有景点。维基百科开放时间:1831年地址:StJohn'sCollege,:,spanningtheSevernriverinShropshire,England,isn'taparticularlylargeorornatebridge,butitdoeshavesomethingthatmadeitunique:it',Shropshirewasrichinironandcoal-indeed,thereweremoreironfactorieswithintwo-,astrongeralternativetowood.(Photooftherailing:ArchitectThomasFarnollsPritchardproposedasinglearchbridgethatwouldletboatspassunderneath,(363tonnes)ofcastironwasused,,(whichtheydidusingscrewsinsteadofbolts!).TheeaseandspeedoftheIronBridge'sconstructionhelpedconvinceengineersoftheversatilityandstrengthofiron,,however,didn'tfaresowell:heseverelyunderestimatedthecosttobuildthebridge,andremainedindebtfortherestofhislife.(Source),Ontario,':gojumeister[Flickr]PisgahCoveredBridgeinsouthernRandolphCounty,,butrebuiltwith90%':jimmywayne22[Flickr]ThomasMaloneCoveredBridgeinBeaverCreekStatePark,:c0reyann[Flickr]Coveredbridgesaresimplythat:
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