{"version":"1.0","provider_name":"Curiosando Firenze","provider_url":"https:\/\/curiosandofirenze.it\/en","author_name":"Stefano Bruschi","author_url":"https:\/\/curiosandofirenze.it\/en\/author\/stefano-bruschi\/","title":"A UFO! - Curiosando Firenze","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"mG6a3HSmQV\"><a href=\"https:\/\/curiosandofirenze.it\/en\/a-ufo\/\">A UFO!<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/curiosandofirenze.it\/en\/a-ufo\/embed\/#?secret=mG6a3HSmQV\" width=\"600\" height=\"338\" title=\"&#8220;A UFO!&#8221; &#8212; Curiosando Firenze\" data-secret=\"mG6a3HSmQV\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!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);\n\/\/# sourceURL=https:\/\/curiosandofirenze.it\/en\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","thumbnail_url":"https:\/\/curiosandofirenze.it\/en\/wp-content\/uploads\/2025\/10\/Diapositiva1-4.jpg","thumbnail_width":1280,"thumbnail_height":720,"description":"The acronym A.U.F.O. has nothing to do with aliens or UFOs. It is an ancient Italian expression used during the Middle Ages for big construction projects like cathedrals. In the past, building materials like marble and wood were very expensive because of high taxes. However, materials used to build famous cathedrals (like those in Rome, [&hellip;]"}