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the world’s tallest commercial building with load-bearing masonry walls. Learn how the transition from masonry to steel frame skyscrapers transformed the workplace.\u003C/p>","\u003Cp>Join people who come from around the world to see the mighty Monadnock. This meticulously restored building demonstrates the evolution of architecture in the late 19th century. \u003Cstrong>Currently available for \u003C/strong>\u003Ca href=\"https://www.architecture.org/city-tours/group-and-private-tours\" rel=\"noopener noreferrer\" target=\"_blank\">\u003Cstrong>private tours\u003C/strong>\u003C/a>\u003Cstrong> only. \u003C/strong>\u003Ca href=\"https://www.architecture.org/subscribe\" rel=\"noopener noreferrer\" target=\"_blank\">\u003Cstrong>Sign up\u003C/strong>\u003C/a>\u003Cstrong> to be first to know about future tours!\u003C/strong>\u003C/p>",{"architectsAndStyles":577,"duration":581,"format":582,"location":583,"siteType":584,"tourType":585},[578,579,580],"Burnham and Root","19th Century Commercial","Holabird & Roche","45 minutes","In Person","Downtown","Buildings","Walking",[587],{"image":588,"imageAltText":589},"https://cdn.builder.io/api/v1/image/assets%2Fe61abde79d954ddab2b6092044c4b5a1%2F88b0c203cfca40279796dde920e49acc","Looking up at building with blue sky",{"@type":19,"id":591,"model":592},"2de0ca8ee8bb4d808f5ab96037e954b6","pricing-groups",145,{"seo":595},{"description":596},"","Building",{"description":558,"id":593,"model":599,"performances":600,"prices":606,"season":617},"Tours",[601],{"id":602,"link":603,"performanceDateTime":604,"productionSeason":605},77371,"https://cart.architecture.org/71124/77371","2024-11-08T12:15:00-06:00",71124,[607,610,614],{"description":440,"memberships":608,"price":609,"priceTypeId":427},[],15,{"description":476,"memberships":611,"price":612,"priceTypeId":613},[392,394,396,398],0,[371,369,375,377,373],{"description":453,"memberships":615,"price":616,"priceTypeId":415},[428,388,390],5,{"description":618,"id":619},"2024 Walking Tours",252,"\u003Cp>Inside Monadnock building, \u003Ca href=\"https://maps.app.goo.gl/tvEe9DX9zCJTgbeQ6\" rel=\"noopener noreferrer\" target=\"_blank\">53 W. Jackson Blvd.\u003C/a>\u003C/p>",[622,795],{"@type":623,"@version":457,"id":624,"meta":625,"children":627,"responsiveStyles":793},"@builder.io/sdk:Element","builder-babec317d1b941e0be3d49269a5b6ef8",{"previousId":626},"builder-2f719ee41833404cbf91db1ccee46abc",[628,645,659,680,708,719,735,744,756,767,782],{"@type":623,"@version":457,"id":629,"meta":630,"component":632,"responsiveStyles":638},"builder-d50d25d1f42b4c2fb5da2ab1c8de7e27",{"previousId":631},"builder-b319ddc151f44edeb10b55043b2c4636",{"name":633,"options":634,"isRSC":637},"Text",{"padding":635,"text":636},"none","\u003Cp>The tour begins with \u003Ca href=\"/online-resources/architecture-encyclopedia/burnham-and-root\" rel=\"noopener noreferrer\">Burnham and Root’s\u003C/a> 1891 structure, built the old fashioned way --- brick on brick. It concludes with \u003Ca href=\"/online-resources/architecture-encyclopedia/holabird-and-roche\" rel=\"noopener noreferrer\">Holabird and Roche’s\u003C/a> 1893 addition, supported largely by a metal frame, a technology that allowed buildings to grow tall.\u003C/p>\u003Cp>Often called “the first modern building,” the Monadnock is a Chicago landmark and a national landmark. It also is just plain beautiful.\u003C/p>",null,{"large":639},{"display":640,"flexDirection":641,"position":642,"flexShrink":643,"boxSizing":644},"flex","column","relative","0","border-box",{"@type":623,"@version":457,"id":646,"meta":647,"component":649,"responsiveStyles":657},"builder-64423f37a69740daa6c98cedae4b1da0",{"previousId":648},"builder-a275d71643654920a8079e367a083752",{"name":650,"options":651,"isRSC":637},"Symbol",{"symbol":652},{"data":653,"model":654,"entry":655,"ownerId":656},{},"symbol","d7e29095337c44a88b5cf7c2c23d616c","e61abde79d954ddab2b6092044c4b5a1",{"large":658},{"display":640,"flexDirection":641,"position":642,"flexShrink":643,"boxSizing":644},{"@type":623,"@version":457,"id":660,"meta":661,"component":663,"responsiveStyles":678},"builder-65053d015341493dbc5613d321da6fe5",{"previousId":662},"builder-cb0029aef4314afd855716c1e6cc9128",{"name":664,"options":665,"isRSC":637},"Testimonials Carousel",{"headline":666,"testimonials":667},"Tour reviews",[668,674],{"quote":669,"attribution":670,"title":671,"image":672},"If you are short on time and you want to know something about the development of the skyscraper, this is the building for you. In this one building you can see the transition from the age-old way of building to the new one that would transform cities forever. You can also see two different approaches to designing the facade of a tall building that continue today: one emphasizing structure, the other relying on ornamentation.","Karen Dimond","CAC Docent ",{"alt":673},"######",{"quote":675,"attribution":676,"title":671,"image":677},"It was a cold midwinter day a few years ago when I had the pleasure of giving the tour with a group of about 8. Among them a young Asian architect in shirt sleeves coming directly from the airport on a  lengthy plane change enroute to another warm locale. He explained it was important to see the Monadnock Building for its great fame as the last of an era and the beginning of modern architecture. He even accompanied us on the outdoor portion of the tour for as long as he could stand it. The 20- degree temp did shorten his visit. But he was clearly exhilarated by his brief visit to this icon of his profession.","Laurel Kay Ellwein",{"alt":673},{"large":679},{"display":640,"flexDirection":641,"position":642,"flexShrink":643,"boxSizing":644},{"@type":623,"@version":457,"layerName":681,"id":682,"meta":683,"component":685,"responsiveStyles":706},"Image Carousel with Captions","builder-1c531f9935ae4e34a23d58f1b5f9f948",{"previousId":684},"builder-785cc95f95e641f1aedb6bc87a3e99c7",{"name":681,"options":686,"isRSC":637},{"imageList":687},[688,693,698,702],{"image":689,"caption":692},{"src":690,"alt":691},"https://cdn.builder.io/api/v1/image/assets%2Fe61abde79d954ddab2b6092044c4b5a1%2F29dcef08dd72478e8a7fa3128ed3f723","Side view of large brick building with many windows","Photo by Peter J. Sieger",{"image":694,"caption":697},{"src":695,"alt":696},"https://cdn.builder.io/api/v1/image/assets%2Fe61abde79d954ddab2b6092044c4b5a1%2Fd02d645efd59488dabc58ef888cb3ea0","Group of tourists looking at a building","Monadnock Exterior",{"image":699,"caption":697},{"src":700,"alt":701},"https://cdn.builder.io/api/v1/image/assets%2Fe61abde79d954ddab2b6092044c4b5a1%2Fff2d87cc93844335b8412340940a4a93","Woman touching facade of building",{"image":703,"caption":697},{"src":704,"alt":705},"https://cdn.builder.io/api/v1/image/assets%2Fe61abde79d954ddab2b6092044c4b5a1%2F6eca011f63af4ee18cad4a91e7b3258f","Exterior of brick building with yellow trim",{"large":707},{"display":640,"flexDirection":641,"position":642,"flexShrink":643,"boxSizing":644},{"@type":623,"@version":457,"id":709,"meta":710,"component":712,"responsiveStyles":717},"builder-14bc6c5388b142dd809ac0e5764da50e",{"previousId":711},"builder-e44d7fca21a546269189d1167d102159",{"name":650,"options":713,"isRSC":637},{"symbol":714},{"entry":715,"model":654,"ownerId":656,"data":716},"80e6f467bdd44f1da1c074af731b7258",{},{"large":718},{"display":640,"flexDirection":641,"position":642,"flexShrink":643,"boxSizing":644},{"@type":623,"@version":457,"id":720,"meta":721,"component":723,"responsiveStyles":733},"builder-6522c91d98b844c687a310ae0b44b20f",{"previousId":722},"builder-59c85580e4e345eb9fd3964eee2b0197",{"name":724,"options":725,"isRSC":637},"Container 50 50",{"imageAlignment":51,"headline":726,"body":727,"button":728,"image":732},"MORE ABOUT THIS BUILDING","\u003Cp>Discover more about the Monadnock BUilding in CAC's \u003Ca href=\"/online-resources/buildings-of-chicago/\" rel=\"noopener noreferrer\">Buildings of Chicago\u003C/a> online library.\u003C/p>",{"label":729,"title":730,"url":731},"LEARN MORE","Learn More","/online-resources/buildings/monadnock-building",{"src":704},{"large":734},{"display":640,"flexDirection":641,"position":642,"flexShrink":643,"boxSizing":644},{"@type":623,"@version":457,"id":736,"component":737,"responsiveStyles":742},"builder-6e574c5bc4b64e8c8c4f27a7679e95b6",{"name":650,"options":738,"isRSC":637},{"symbol":739},{"data":740,"model":654,"entry":741,"ownerId":656},{},"90870b243e42490e9cc5c14ec23bb062",{"large":743},{"display":640,"flexDirection":641,"position":642,"flexShrink":643,"boxSizing":644},{"@type":623,"@version":457,"layerName":745,"id":746,"meta":747,"component":749,"responsiveStyles":754},"City Tours: Group & Private Tours / Accessibility Callout Block","builder-6a8a801980804c13a232846ecdb2b4a4",{"previousId":748},"builder-3b0fe70bf4e249fe8d7ff38e76e08cf3",{"name":650,"options":750,"isRSC":637},{"symbol":751},{"entry":752,"model":654,"ownerId":656,"data":753},"b19eb7a47409480d9cc230d8af1a19f3",{},{"large":755},{"display":640,"flexDirection":641,"position":642,"flexShrink":643,"boxSizing":644},{"@type":623,"@version":457,"id":757,"meta":758,"component":760,"responsiveStyles":765},"builder-fa865ccb141a41caab8b07f1757932fb",{"previousId":759},"builder-68217aa3575e478ba2412ee5ec25a645",{"name":650,"options":761,"isRSC":637},{"symbol":762},{"entry":763,"model":654,"ownerId":656,"data":764},"d86a9cdb0df34b63a8a1dc51bcf520e6",{},{"large":766},{"display":640,"flexDirection":641,"position":642,"flexShrink":643,"boxSizing":644},{"@type":623,"@version":457,"id":768,"meta":769,"component":771,"responsiveStyles":780},"builder-d7336d4b2bbd4e5ea77086642c0e2f0f",{"previousId":770},"builder-63ec3f9471ea401f9683a8947406e2ba",{"name":724,"options":772,"isRSC":637},{"imageAlignment":51,"headline":773,"body":774,"image":775,"button":778},"Free Center Entry with Your Ticket","\u003Cp>Ticket price includes entrance to the Chicago Architecture Center within 7 days of your walking or bus tour.\u003C/p>",{"src":776,"alt":777},"https://cdn.builder.io/api/v1/image/assets%2Fe61abde79d954ddab2b6092044c4b5a1%2Fb442a0c1f39248418afd382faeb9b3f2","Skyscraper Gallery",{"label":72,"title":779,"url":73},"visit the 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Tours - Building",[825,829,831],{"endsOn":826,"name":440,"price":827,"sortOrder":612,"startsOn":828},"Mon Dec 31 2029 11:59:00 GMT-0600 (Central Standard Time)","15","Wed Oct 22 2025 00:00:00 GMT-0500 (Central Daylight Time)",{"endsOn":826,"name":419,"price":830,"sortOrder":612,"startsOn":828},"$5",{"endsOn":826,"name":476,"price":832,"sortOrder":612,"startsOn":833},"FREE","Sun Oct 26 2025 00:00:00 GMT-0500 (Central Daylight Time)","2025-10-29T19:00:46.000Z","2026-03-12T11:30:54.000Z",{"success":14,"productId":800,"filterDate":637,"performances":837,"count":612},[]]