Police officers display their AI-powered smart glasses in Luoyang, Henan province, China on April 4, 2018. (Photo by Reuters/China Stringer Network)

Marialuisa Tadeis sculpture is very large compared to a life size octopus. The sculptures are made of steel and concrete. They are then turned into a mosaic using hand cut glass. The texture is bumpy because of the mosaic but is smooth on the glass. The main idea behind the sculpture is to explore spiritual and symbolic representation.

Brazen seagulls, pigeons and starlings bask in the afternoon sun undeterred by a plastic Owl bird scarer on the roof of Liverpool Coastguard Station at Crosby on January 13, 2012 in Liverpool, England. (Photo by Christopher Furlong/Getty Images)

A raccoon crawls out of its hiding place on the roof in Berlin, Germany on May 12, 2020. Every evening he leaves his sleeping place to go in search of food. (Photo by Britta Pedersen/dpa-Zentralbild/dpa)

A boy flies a handmade kite from a roof, following the outbreak of the coronavirus disease (COVID-19). in Old Cairo, Egypt on July 26, 2020. (Photo by Amr Abdallah Dalsh/Reuters)

Workers prepare the roof of a house to get installed solar power modules for producing heat on October 15, 2011 in Wessling, Germany. Germany has and is continuing to invest heavily in solar energy, both in the public and private sectors. The German government introduced a feed-in tariff with its Renewable Energy Act in 2000 that guarantees homeowners a minimum rate for selling electricity from renewable energy sources into the nation's electricity grid. (Photo by Alexandra Beier/Getty Images)

Winners of a competition enjoy a meal 450ft up on the roof of a central London skyscraper on August 21, 2018, as Deliveroo recreates “Lunch Atop a Skyscraper”, the photograph taken during the construction of the Rockefeller Center in New York City, 1932. (Photo by Jonathan Brady/PA Images via Getty Images)

Bangladeshi Muslims travel on the roof of an overcrowded train as they head to their hometowns ahead of Eid al-Adha in Dhaka, Bangladesh, Friday, September 1, 2017. The festival commemorates the story of Abraham and his readiness to sacrifice his son as an act of obedience to God, who provided a lamb to be used instead. (Photo by Bernat Armangue/AP Photo)