China’s MAD Architects has renovated an abandoned lookout tunnel in the western Japanese prefecture of Niigata into an art project as part of the 2018 Echigo-Tsumari Triennale.
The 750m long Kiyotsu Gorge Tunnel has been remodeled to take the forms of the “five elements of nature”:
- Wood: Before approaching the tunnel, visitors can stop off at a wooden hut containing a café and souvenir shop, and on the upper floor a circular aperture called a periscope acts as a skylight above a hot spring foot spa.
![](https://www.globalconstructionreview.com/wp-content/uploads/2021/08/mad2_5.jpg)
- Earth: Coloured lights and “mysterious music” set the scene for each vantage point throughout the tunnel.
![](https://www.globalconstructionreview.com/wp-content/uploads/2021/08/mad3_6.jpg)
- Metal: A toilet called the “invisible bubble” allows users to view their surroundings, and maybe other members of the public, through a one-way mirror.
![](https://www.globalconstructionreview.com/wp-content/uploads/2021/08/mad4_4.jpg)
- Fire: Designed to appear like dew drops, reflective metallic spots are hung from the ceiling.
![](https://www.globalconstructionreview.com/wp-content/uploads/2021/08/mad5.jpg)
- Water: At the end of the tunnel is the “light cave”, where polished steel reflects the view of the gorge, and visitors can look out over the terrain while in a shallow pool of water.
![](https://www.globalconstructionreview.com/wp-content/uploads/2021/08/mad6.jpg)
MAD says the designs “rethink the relationship between humans and nature” and reconnect “locals and visitors alike with the majestic beauty of the land”.
Images courtesy of MAD Architects