We asked our readers to send in their best pictures on the theme of "on the horizon". Here is a selection of the photographs we received from around the world.
Ian Hummer
Ian Hummer: "Walking through Kiyomizudera, one can't help but admire the great view of the Kyoto skyline with the mountains in the background."
Martin Offer
Martin Offer: "Dancers on the Sussex Downs salute the summer solstice."
Cassandra Simmons
Cassandra Simmons: "Golden hour at the Temple of Poseidon."
Victor Tregubov
Victor Tregubov: "I was taking a photo of the sunset during one of the stages of the Marathon des Sables in Morocco. However, at home I found that a fellow runner, who also enjoyed the scenery, was in the frame too."
Catherine Holmes
Catherine Holmes: "A stingray cruises calmly along the sandbank while above, a stormy sky develops with boats and snorkellers managing the choppy waters in the Cayman Islands."
Ian Callen
Ian Callen: "I led a group of people with various support needs in the Sahara Desert in Morocco. They took a camel ride at sunset and I followed on foot through the sand-dunes. The group climbed a dune as I watched and the figures became silhouetted against the setting sun."
Marine Gaste
Marine Gaste took this picture of the Champs-Elysees in Paris.
Evelyn Oakley
Evelyn Oakley: "During the pandemic, unemployed cruise ships were moored off Torbay, in Devon, their hulking silhouettes on the horizon a symbol of the strangest of times. These two were photographed from Dawlish Warren in beautiful light on a still, crisp winter's day, Christmas Eve 2020. Our Christmas with family in London had just been cancelled by lockdown."
Kevin Baldwin
Kevin Baldwin: "I wonder if the passengers on that ferry from Dover arrived in Calais richer than when they started the crossing."
Aaron Enloe
Aaron Enloe: "The sun sets on the horizon behind a group of Joshua trees in Joshua Tree National Park."
Andrew Stiles
Andrew Stiles: "A silhouette of a stag on the horizon at Knole Park during rutting season."
Rachael Blakey
Rachael Blakey: "Fishing weir at Dark Harbour, Grand Manan, Canada."
Louise De Kock
Louise De Kock: "Captivated by the enchanting glow illuminating my nightly run in the south of Sweden. Initially puzzled, I soon realised it was the mesmerising lights emanating from the logging factory just beyond my town's borders."
Louise Rayner
Louise Rayner: "Amazing sunrise over Staithes in North Yorkshire."
Thomas Sherring
Thomas Sherring: "A faint Northern Lights display dancing over the horizon during a cold night in Tromsø, Norway this January."
John Lanagan
John Lanagan: "Families enjoy a sunny February afternoon on the beach in Southwold. By using a long lens I managed to get the distant Sizewell nuclear station to loom large on the horizon. I like to think that if Lowry was alive and visited Southwold, he may capture something like this."
Caroline Ebbage
Caroline Ebbage: "We were fortunate enough to be able to kayak on Lough Neagh before the recent issues with algae build-up. A perfectly calm day gave us an infinite horizon."
Dominique Siegrist
Dominique Siegrist: "Sam, my trusted hiking partner, looks out on to the horizon atop Jay Peak."
Julian Crowe
Julian Crowe: "Mojave Desert landscape at sunset via the rear-view mirror of a Ford Mustang."
Mark Kelly
Mark Kelly: "Contemplation."
Richard Smeeton
Richard Smeeton: "Locals gather around Essaouira's citadel at sunset."
The next theme is "speed" and the deadline for entries is 5 March 2024.
Ian Hummer
Martin Offer
Cassandra Simmons
Victor Tregubov
Catherine Holmes
Ian Callen
Marine Gaste 
Evelyn Oakley
Kevin Baldwin
Aaron Enloe
Andrew Stiles
Rachael Blakey
Louise De Kock
Louise Rayner
Thomas Sherring
John Lanagan
Caroline Ebbage
Dominique Siegrist
Julian Crowe
Mark Kelly
Richard Smeeton
