In 2023, Europe’s largest spent uranium storage facility will start being backfilled 500m below the earth in Finland. It’s called Onkalo which translates to ‘the hiding place’.

The initial brief for this project was to create a warning to deter future visitors (human or otherwise) from complete planetary failure. Tommy Caine researched various offerings from scientific groups to tackle this issue, including 10ft high spikes in the ground and concrete blocks inscribed with narratives of a demon living below the surface. Despite this, Caine believes human nature would still venture fourth, no matter how scary the landscape. Caine flips the script: and invites visitors from around the world to see the ultimate dark tourist destination – the Onkalo Museum and gift shop.