IJboulevard is an underwater bike park in Amsterdam

Dutch studio VenhoevenCS Architecture + Urbanism has completed IJboulevard, an underwater bicycle park for Amsterdam Central Station in the Netherlands.
The facility provides underwater parking for 4,000 bicycles, as well as a pedestrian boulevard above ground with panoramic views over the River IJ.
IJboulevard is an underwater bike park by VenhoevenCS Architecture + Urbanism
Commissioned by the Municipality of Amsterdam, VenhoevenCS Architecture + Urbanism sought to declutter the station's publ