This abandoned loop bridhe is an iconic and mysterious haikyo site. Located on the Izu Peninsula south of Tokyo, the bridge was either abandoned after collapsing during an earthquake in the 1970s, or after a failed spa resort project on the mountain. Some say the bridge was finished in the 1970s and opened to the public, but then went bankrupt and fell into disrepair in the 1980s or 90s. Others believe it was built in the 1970s, collapsed in the 1980s, but wasn’t admitted by city officials until 1993. The true story of the bridge’s abandonment is unclear, as local historians and city archives are not available.