Hidden beneath our feet is a piece of art left over from an exhibition commenting on society hurtling towards economic crisis and apocalypse.
Among the stone slab floors of Royal Albert Dock sits a cast iron manhole cover, part of the first UK museum exhibition of South Korean artists Moon Kyungwon and Jeon Joonho.
Reflecting the façade of what lies beneath the surface of civilised society, the manhole cover was part of an exhibition presenting the artists' vision of society 100 years from now.
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In it, they asked: "What is the social function and role of art in the contemporary world?"
Moon and Jeon drew inspiration from 'News From Nowhere', a satirical, socialism and science fiction novel from 1890 by William Morris.
Morris used a utopian vision of London in the 21st century to comment on the England of the 1800s in which he lived.
With two short films, and two accompanying manhole covers inside and out of the Tate Liverpool during their 2018 to 2019 exhibit, Moon and Jeon cast their eyes of society today and into the future
A collaboration spurred on by a frustration with waste in art production, Moon and Jeon's work is all the more relevant at a time of climate and economic crises.
Even more so at a site once decrepit and decayed after decades of economic boom as a global port, much like the artists' home city of Busan, South Korea.
A spokesperson for Tate Liverpool said: "El Fin del Mundo (The End of the World), is a 13-minute science fiction film that explores the role of art in a changing world, through scenes of a post-apocalyptic future.
"Separate screens cinematically depict two characters.
"A male protagonist continues to make artwork amid an unfolding catastrophe; meanwhile, projecting the viewer even further into the future, a female character goes about life in the event’s aftermath.
"Documenting relics of the past, she comes across a string of fairy lights the male character incorporated in his artwork.
"Her encounter with this strange-looking object stirs profound new emotions in the woman, with the artist leaving behind traces of feelings and meaning long after he has gone."
Traces of Moon and Jeon's art and commentary, and the words of their character, remain two years since they left Liverpool.
The female character's closing words are emblazoned on the manhole cover outside Tate Liverpool 's entrance.
This "Manhole Cover Project" is something the Korean duo have continued with an installation on a street in the Japanese city of Kanazawa last year.
The cover in Kanazawa was "created by combining the design of pine trees, the symbol of Kanaiwa and the city", with Moon and Jeon's same slogan, "My Future Will Reflect a New World" written on top.
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