Architecture

Researchers in Spain and Italy are developing a range of new materials from construction waste that would once have ended up in landfill.

In the Lebanese mountains, the site of Qasr Moussa - or Moussa Castle - tells the story of a common man who pursued the dream of building his own castle.

Watch: A new footbridge will reunite the two halves of Tintagel Castle

The three seesaws are intended "as a recognition of the actions that happen on one side and have a direct impact on the other," said the architect who built them.

César Pelli, known as the architect who designed some of the world's best-known buildings, has died aged 92.

"Wright set himself two goals: to define or even create the 20th century and to redefine what we are as human beings."

Authentic historical artefacts, including traditional clothes, baskets and entire houses, were brought from different regions that now make up Belarus. The village consists of a church, a school, a barn, a blacksmith shop, a windmill, farmsteads and a tavern.

Thirteen artists from all over central Asia have met in Uzbekistan's Samarkand, one of the continent's most ancient cities, for an ambitious project immortalising centuries of cultural heritage in artworks.

The museum's president, Jean-Luc Martinez, expressed his sadness at the passing of Ieoh Ming Pei.

Some ideas are serious, some are crazy, but architects are responding to the challenge of an international design competition to rebuild Notre-Dame de Paris.

The award recognises architecture that addresses the needs of Muslim communities. Nominees this year include an Indonesian microlibrary and an Omani fish market which highlights tradition while drawing tourism.

Experts from around the world have been called upon to help with the reconstruction and restoration of the fire-ravaged Notre-Dame cathedral in Paris

The statues have not left the roof of Notre Dame in more than 100 years.