1.0Poland Travel (EN)https://www.poland.travel/enPoland Travel (EN)https://www.poland.travel/enrich600338<blockquote class="wp-embedded-content" data-secret="t9x9UvSE2I"><a href="https://www.poland.travel/en/olsztyn-copernicus-city-with-15-lakes/">Olsztyn – The capital of thousand lakes</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.poland.travel/en/olsztyn-copernicus-city-with-15-lakes/embed/#?secret=t9x9UvSE2I" width="600" height="338" title="„Olsztyn – The capital of thousand lakes” — Poland Travel (EN)" data-secret="t9x9UvSE2I" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script type="text/javascript"> /* <![CDATA[ */ /*! 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> https://www.poland.travel/en/wp-content/uploads/sites/17/2023/03/225231223_Jezioro_Dlugie1920.jpg1920632Towering over Olsztyn is St. James’s Basilica, an impressive brick edifice, becoming the dignity of a bishop’s seat, which the town has been for over 600 years. The Basilica has amazing acoustics which one can appreciate all the more during the Olsztyn Organ Concerts. The town, which grew around a 14th century Teutonic Knights’ watchtower, has close links to the history of our great astronomer, Copernicus, who lived here […]