Since the 1970s, the Yau Ma Tei Carpark Building (YMTCB) has provided parking space for the public in the prosperous Yau Tsim Mong District and has acted as a destination for local collectors and book lovers going on a treasure hunt. During its Phase 2 Extension in the early 1980s, the YMTCB, famous for its “running tunnel”, was a section of the Gascoigne Road Flyover (GRF). The flyover, which spans across the building, is one of the recognisable symbols over the notoriously congested West Kowloon Corridor.