{"version":"1.0","provider_name":"Maps4Kids","provider_url":"https:\/\/maps4kids.com\/blog","author_name":"maps4kids team","author_url":"https:\/\/maps4kids.com\/blog\/author\/admin\/","title":"Vienna Subway Development - Maps4Kids","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"7GMauyI4fC\"><a href=\"https:\/\/maps4kids.com\/blog\/vienna-austria-subway-development-map-1978-2013\/\">Vienna Subway Development<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/maps4kids.com\/blog\/vienna-austria-subway-development-map-1978-2013\/embed\/#?secret=7GMauyI4fC\" width=\"600\" height=\"338\" title=\"&#8220;Vienna Subway Development&#8221; &#8212; Maps4Kids\" data-secret=\"7GMauyI4fC\" 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:\/\/maps4kids.com\/blog\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","thumbnail_url":"https:\/\/maps4kids.com\/blog\/wp-content\/uploads\/2020\/03\/vie_ubahn2-e1584954865575.jpg","thumbnail_width":1200,"thumbnail_height":528,"description":"The city of Vienna, Austria is a thriving metropolis of almost 2 million people. It has long had a well developed public transportation system that includes rail, trolley and bus. The rail system had trolley and light rail lines going back over 100 years. In the 1970s, the city of Vienna began a long term [&hellip;]"}