1.0Idesehttps://idese.cultura.gov.it/en/rich600338<blockquote class="wp-embedded-content" data-secret="BQTEQLad27"><a href="https://idese.cultura.gov.it/en/place/historical-quarry-museum-of-cala-francese/">Historical Quarry Museum of Cala Francese</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://idese.cultura.gov.it/en/place/historical-quarry-museum-of-cala-francese/embed/#?secret=BQTEQLad27" width="600" height="338" title="“Historical Quarry Museum of Cala Francese” — Idese" data-secret="BQTEQLad27" 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); //# sourceURL=https://idese.cultura.gov.it/wp-includes/js/wp-embed.min.js </script> https://idese.cultura.gov.it/wp-content/uploads/2022/05/Cala-Francese-01-768x548.jpg600428Around 1860, someone outside the island discovered the advantage of using Maddalena granite for paving roads. The quality of the stone and relative ease and speed of transport by sea as far as Porto Torres made this granite more favourable to the one found in other areas traditionally better equipped for this kind of supply […]