1.0Spacing Torontohttps://spacing.ca/torontoSean Marshallhttps://spacing.ca/toronto/author/sean/rich600338<blockquote class="wp-embedded-content" data-secret="zbscE1hkAn"><a href="https://spacing.ca/toronto/2007/10/02/doors-open-niagara/">Doors Open Niagara</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://spacing.ca/toronto/2007/10/02/doors-open-niagara/embed/#?secret=zbscE1hkAn" width="600" height="338" title="“Doors Open Niagara” — Spacing Toronto" data-secret="zbscE1hkAn" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); </script> One of the happiest traditions in recent years has been Doors Open, a free annual architectural event that allows visitors to explore and appreciate old and modern indoor spaces, of which many are not usually open to the public. An adopted idea from London and other European centres, it started in North America with TorontoContinue readinghttp://farm2.static.flickr.com/1393/1471121042_509d14c2d7_o.jpg