Picture dated January 16th, 2023 the Red Arrows training over RAF Scampton in Lincolnshire. The Red Arrows continued their winter training over RAF Scampton in Lincolnshire yesterday, Monday. The planes were seen soaring across the sky and leaving trails of smoke as they practised their famous aircraft formations. The vapour trails were illuminated by the sunlight as the planes rehearsed in the late afternoon. (Photo by Caroline Haycock/Bav Media)

Artist Gaelle Villedary has installed a grass “carpet” across the village of Jaujac in France to celebrate the 10th anniversary of the Arts and Nature Trail program. The green trail is made of 168 rolls of grass and runs for 1,377 feet (420 metres) to connect the village seamlessly to its surrounding natural landscape.

The Haʻikū Stairs, also known as the Stairway to Heaven or Haʻikū Ladder, is a steep hiking trail on the island of Oʻahu. The trail began as a wooden ladder spiked to the cliff on the south side of the Haʻikū Valley. It was installed in 1942 to enable antenna cables to be strung from one side of the cliffs above Haʻikū Valley to the other. A building to provide a continuous communication link between Wahiawā and Haʻikū Valley Naval Radio Station was constructed at the peak of Puʻukeahiakahoe, elevation about 2,800 feet (850 m). The antennae transmitted very low frequency radio signals from a 200,000-watt Alexanderson alternator in the center of Haʻikū valley. The signals could reach US Navy submarines as far away as Tokyo Bay while the submarines were submerged.

Italian Air Force's aerobatic demonstration team, the Frecce Tricolori leave colourful vapour trails as they fly over the Altare della Patria monument on Republic Day (Festa della Repubblica) in Rome, Italy, 02 Jun 2017. The anniversary marks the founding of the Italian Republic in 1946. (Photo by Massimo Percossi/EPA)

Members of the Old Surrey Burstow and West Kent Hunt ride to Chiddingstone Castle for the annual Boxing Day hunt in Chiddingstone, south east England December 26, 2014. Since a ban stopped fox hunting with hounds, hunts continued with dogs chasing down a pre-laid scented trail instead of a fox. (Photo by Luke MacGregor/Reuters)

Dutch artist Suzan Drummen‘s large-scale floor installations are mesmerizing and complex circular patterns made out of mirrors and brightly colored glass. The fractal-like arrangements feature ornate and elaborate circles growing exponentially out of each other and vibrant rings of spiraling colors winding into the surface of the floor. They are composed of crystals, chromed metal, precious stones, mirrors and optical glass. A sensory experience, and visually stimulating, the glittering installations play with the architecture of the space — climbing up walls and sweeping across the surfaces — examining the idea of illusion and optical effects.

A woman looks at artwork called “Alphabetti Spaghetti” by British sculptor Alex Chinneck, one of a series of “knotted” postboxes, installed as part of a public art trail for Kensington & Chelsea Art Week on October 3, 2020. (Photo by Victoria Jones/PA Images via Getty Images)

Catholic pilgrim Matilde Madalena de Jesus crawls on a rocky trail carrying a bottle of water on her head during the annual pilgrimage of the dead (Romaria dos Finados), in the city of Juazeiro do Norte, Ceara state, in Brazil October 31, 2016. (Photo by Ueslei Marcelino/Reuters)