The Art of Building 2021 winners revealed

Two photographers have been named winners of the 2021 Art of Building global photo contest, chosen from entrants from over 100 countries.

Rahaman Hossain received 20% of the competition's public vote with his photo Life Through History, showing Humayun's Tomb in Delhi, India (above).

"This splendid mausoleum was built in memory of Emperor Humayun, the second Mughal ruler," said Mr Hossain.

"I waited here for one and half hours to take this shot.

"Suddenly, I saw an old lady, and when she sat down at the edge of the water, I captured this photo."

Russian photographer Mikhail Proskalov won the Judges' Choice prize for his drone image of the Lakhta Centre in St Petersburg (below), famous for being the tallest skyscraper in Europe.

The competition, now in its eleventh year, is run by the Chartered Institute of Building (CIOB), and celebrates creativity in the construction industry.

"From protecting our heritage to meeting the needs of modern life with a building that reaches for the stars, the built world is a wonder of our own creation, and these photographers have captured that inspiration beautifully," said Kate Macbeth, director at the CIOB, and judge of the Art of Building.

The two winners will each receive a cash prize of £1,500. Ten other images reached the final - they're seen below with descriptions by the photographers.

"A frosty winter's night on a seemingly abandoned construction site.

"In the morning, work will be in full swing here despite the harsh weather, and in a year people will begin to move into their apartments."

"The Bizkaia Bridge, also known as the Hanging Bridge, has been a Unesco World Heritage Site since 2006.

"It was built by Ferdinand Arnodin, a disciple of Gustave Eiffel, in 1893.

"Located in the final section of the Bilbao Route, right in the place where the sea meets the River Nervión, this spectacular iron structure joins the neighbourhoods of Las Arenas and Portugalete."

"An unusual concrete tiled staircase in an abandoned manor."

"Norilsk is an industrial city in Russia located beyond the Arctic Circle...

"It seems to many that this is a city where it is impossible to live, but the locals love their city.

"For me it became a perfect combination of white and blue colours."

"The stunning architecture of the Japan Pavilion during my visit to Dubai Expo, one of the largest international events on the planet."

"It is never too late to see beautiful architecture; it can always be found. All you need to do is to have your eyes wide open, to be ready to see all those fantastic, repeated patterns of Dutch-style architecture."

"A traditional wooden roof stretches over a huge public space."

"An open space with a design that features a canopy of stars opened up to skaters to enjoy their leisure activity."

"The view of the Capitol building as seen through an alleyway: a comparison of the old and the new."

"The shadow created by low sunlight shows us the real structure of this bridge."

All pictures are subject to copyright.