{"version":"1.0","provider_name":"Landmark","provider_url":"https:\/\/boroughphotos.org\/lambeth","author_name":"lambeth2017","author_url":"https:\/\/boroughphotos.org\/lambeth\/author\/lambeth2017\/","title":"THE ROTUNDA, BLACKFRIARS - Landmark","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"sXOGHc5BQ4\"><a href=\"https:\/\/boroughphotos.org\/lambeth\/the-rotunda-blackfriars\/\">THE ROTUNDA, BLACKFRIARS<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/boroughphotos.org\/lambeth\/the-rotunda-blackfriars\/embed\/#?secret=sXOGHc5BQ4\" width=\"600\" height=\"338\" title=\"&#8220;THE ROTUNDA, BLACKFRIARS&#8221; &#8212; Landmark\" data-secret=\"sXOGHc5BQ4\" 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:\/\/boroughphotos.org\/lambeth\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","thumbnail_url":"https:\/\/boroughphotos.org\/lambeth\/wp-content\/uploads\/2026\/07\/17122.jpg","thumbnail_width":1135,"thumbnail_height":909,"description":"The Rotunda in Blackfriars was built 1788-89 to house the natural history collection of Sir Ashton Lever, then called the Leverian Museum. The collection was dispersed in 1806 and the following year the house became the premises of the Surrey Institution. Watercolour by J Hassell dated 1824, from the Surrey Collection. ID: SP3\/6\/SUR.1"}