Tunnels  and underground passages might seem dark and unfriendly places, but some of them are there to prove just the opposite. To architects, those often offer an opportunity to express their most daring ideas of space distortion and use of color. Moreover, advanced usage of underground spaces and empty lots seeems simply inevitable these days, as it may become a perspective means of confronting the housing crisis as well as a great opportunity to employ innovative technologies. Just take a look at several examples of tunnel architecture, that may serve as an inspiration to design a project like this for your city environment!

This tunnel of pink was last year’s project for Passages Insolites in Quebec City.
Rest hole in the University of Seoul / UTAA (via archdaily)
Xile is an origami-flexible self-supporting tunnel designed by Mats Karlsson
The Moodwall is an interactive tunnel in Amsterdam by The Urban Alliance (a collaboration of Studio Klink,  Illuminate, artist Matthias Oostrik and design/construction firm Cube).
These agricultural growing tunnels were built inside a former book store in Kanazawa, Japan by Studio Nendo. “Home-use greenhouse” can be installed in empty places to serve as an agricultural space or a gallery  (via dezeen)
Have you got interesting pics, stories or proposals for improving city? Please, share your visuals on Instagram or Facebook to take part in #BEOPENDesignCity open call, held together with the Mayor’s Fund for London, and get a chance to win €300.
Check out the details at beopensocial.com
Hurry up, the deadline for the entries is January 31, 2018!