It’s hard to fathom how magnificent castles were built centuries ago. One group set out to understand just that by building their own masterpiece two hours outside of Paris. Tucked away in a forest, a team of master builders and archeologists are attempting to construct Guédelon, a castle from the 13th century, using only medieval techniques. SUBSCRIBE: https://goo.gl/vR6Acb Follow us behind the scenes on Instagram: http://goo.gl/2KABeX Make our acquaintance on Facebook: http://goo.gl/Vn0XIZ Give us a shout on Twitter: http://goo.gl/sY1GLY Come hang with us on Vimeo: http://goo.gl/T0OzjV Visit our world directly: http://www.greatbigstory.com This story is a part of our Frontiers series, where we bring you front and center to the dreamers, pioneers, and innovators leading society at the cutting edge. Let us take you along for a trip to the oft-imagined but rarely accomplished. Great Big Story is a video network dedicated to the untold, overlooked & flat-out amazing. Humans are capable of incredible things & we're here to tell their stories. When a rocket lands in your backyard, you get in.