Seto Shirube (Takamatsu Port Tamamo Breakwater Lighthouse)
A red lighthouse standing at the tip of a seawall that extends from Takamatsu Port to the sea.
Nicknamed "Seto Shirube", it is the world's first lighthouse made entirely of glass. In 2016, the Nippon Romanticist Association and the Nippon Foundation's "Beloved Lighthouses" event, organized by the Yakei Convention and Bureau, named it as one of Japan's "Great Three Night Lighthouses", and 2019 saw it recognized as a "Nightview Heritage Site".
