It uses sunlight to convert pollutants into less harmful compounds.
57,000 art lovers attended and around 900 artists had their work displayed as the Art Paris art fair finally went ahead at the Grand Palais des Champs-Élysées after initial cancellation and an online version.
They say life imitates art - and that’s exactly what actors in Romania did over lockdown, in an attempt to bring famous works of art to a wider audience over the internet.
With audiences and performers already dwindling even before the pandemic, some in the industry of traditional Japanese Noh play fear the virus may sound the death knell for an art considered one of the oldest extant theatre forms in the world.
Some 30,000 fish, including koi carp, are on display in everything from traditional fish bowls to columns of water tanks.
Comprised of 90 per cent clay and 10 per cent liquid plastic, the models can take up to five days each to make.
Costume designer and actor Edmond Kok has created more than 170 experimental face masks, inspired both by the pandemic and Hong Kong's own political problems.
A land artist is helping to cultivate support for US presidential hopeful Joe Biden after carving a picture of him in an Italian field.
The tiny Marxist-Leninist Party of Germany erected the first statue of Lenin ever on former West German territory.
Christo and his wife, Jeanne-Claude, famously cloaked Berlin's Reichstag, Paris's Pont Neuf and Australia's Little Bay in reams of fabric.
Gopal Namajoshi hopes his artwork will open up conversations about how humans and animals can coexist on the planet.