Norwich Castle in Norfolk has reopened following the restoration of its 12th-century keep by British architecture studio Feilden and Mawson, which added glazed elements to modernise the Grade I-listed building. More about Feilden and Mawson completes restoration of 12th-century Norwich Castle
A 10th-century castle in the Umbrian hills has been restored and transformed into a hotel by Count Benedikt Bolza and his family, who created custom furniture for its 36 suites, restaurant and spa. More about Bolza family turns 1,000-year-old Italian castle into Hotel Castello di Reschio
Swiss architect Aurelio Galfetti's stark hillside entrance to the medieval Castelgrande in Bellinzona, Switzerland is the focus of this architectural photography series by Simone Bossi. More about Castelgrande's bunker-like entrance captured in photos by Simone Bossi
Architecture studio Atelier-r has added a series of Corten steel bridges and platforms to provide tourist access to the ruins of Helfštýn castle in the east of the Czech Republic. More about Atelier-r creates Corten tourist route around ruins of Czech Republic castle
Architecture studio William Matthews Associates and engineers Ney & Partners have built a bridge in Cornwall from two 30-metre cantilevered spans that don't quite meet in middle. More about Tintagel Castle Bridge in Cornwall has a gap where it meets in the middle
Studio Lotus has designed the Mehrangarh Fort visitor centre in Jodhpur, India, using a system of interconnected and adaptable decks. More about Studio Lotus unveils design for visitor centre at 15th-century Mehrangarh Fort
Swiss architect Max Dudler used a simple palette of cherry wood, stone and terrazzo when converting this former saddle room into a restaurant at Germany's Heidelberg Castle. More about Max Dudler creates restaurant inside Heidelberg Castle's sandstone-walled saddle room
A+Awards: Spanish firm Carquero Arquitectura received a 2016 Architizer A+Award for this restoration of a crumbling hilltop castle near Cádiz. More about Carquero Arquitectura restores ancient Matrera Castle with contemporary elements
This tunnel made up of wooden profiles was designed by NAS Architecture to arch over the fortifications surrounding a historic commune in the south of France (+ slideshow). More about NAS Architecture installs wooden "vortex" over medieval city wall in France
The Museum of Shit is housed in an Italian castle and is dedicated to demonstrating "what a useful and living substance crap really is" (+ slideshow). More about Italy's Museo della Merda is full of shit
Castle specialist Max Dudler has completed his latest German fortress project – a new entrance building for the historic Hambach Castle on the edge of the Palatine Forest (+ slideshow). More about Max Dudler adds sandstone entrance building to Hambach Castle grounds
Comoco Architects has added a third new structure to the grounds of the medieval Pombal Castle in Portugal – a limestone-clad visitor centre that doubles as a viewing platform (+ slideshow). More about Pombal Castle visitor centre offers a peek through a historic stone wall
Multi-tonal layers of concrete resemble bands of sediment on the walls of this visitor centre designed by Swiss architect Max Dudler for a medieval fortress in Germany (+ slideshow). More about Sparrenberg Castle visitor centre by Max Dudler boasts striated concrete walls
London studio Levitate have reinstated access to a sixteenth-century English castle by repairing stonework and slotting a continuous oak walkway into the ruined shell. More about Oak walkway by Levitate inserted into ruined castle
Chilean architects Mathias Klotz and Lillian Allen have renovated a castle-like residence in Santiago's Parque Forestal to create a restaurant, exhibition space and ice-cream parlour (+ slideshow). More about Restaurant Castillito by Mathias Klotz and Lillian Allen
We love a castle on Dezeen so here's a roundup of all the modern additions to fortresses we've featured. See all castle architecture »
More about Dezeen archive: castles
A contemporary house inserted behind the crumbling walls of a ruined twelfth-century castle in Warwickshire, England, by Witherford Watson Mann is one of the six projects nominated for the 2013 Stirling Prize (+ slideshow). More about Astley Castle renovation by Witherford Watson Mann
Portugese designer Miguel Vieira Baptista came up with a set of measuring tools for a hypothetical reconstruction of a castle by estimating lengths with his hands. More about Units for Reconstruction by Miguel Vieira Baptista
We love projects that involve castles. Windows are set within two-metre-deep recesses in the stone walls of this castle visitor centre in southwest Germany by Swiss architect Max Dudler. More about Heidelberg Castle Visitor Centre by Max Dudler
Portuguese architects Comoco have added a weathered steel cafe and a wooden gazebo on the hill of a castle in the town of Pombal. More about Pombal Castle Hill by Comoco Architects