Sumber: Velo-design.com
Sumber: twistedsifter.files.wordpress.com
Sumber: Hovenring.com
Sumber: Hovenring.com
Sumber: Hovenring.com
Sumber: Hovenring.com
Sumber: Hovenring.com
Sumber: Hovenring.com
Referensi:
https://hovenring.com/
http://freshome.com/2014/02/04/worlds-first-suspended-bicycle-roundabout-netherlands/
http://twistedsifter.com/2014/01/hovenring-worlds-first-suspended-bicycle-roundabout-netherlands/