![Beaumaris Castle featuring chateau or palace, heritage elements and heritage architecture](https://a.travel-assets.com/findyours-php/viewfinder/images/res40/145000/145791-Beaumaris-Castle.jpg)
Source: Tourism Media
Beaumaris Castle is one of Wales\' six UNESCO World Heritage Sites, despite never having been finished. The 700-year-old fortifications here were highly advanced for their time and still look formidable today, even when dwarfed by the mountainous backdrop of Snowdonia National Park.