I just loved the way Hugo was strolling confidently towards the castle in this photo!
This castle is actually called a Donjon. It is a major part of a medieval castle and the most important monument in Niort, in the Poitou-Charentes. In part the donjon dates from the 12th century, when it was built in the Roman style by Henry II (Henry Plantagenet) and Richard the Lionheart, and is one of the largest castles from this period that remains in France. It has a really interesting Anglo-French history, changing ownership several times over the years.