there is a traffic light in Japan, that only turns green one day a year

The island of Himakajima, a few dozen kilometers south of Nagoya in between Ise Bay and Mikawa Bay, Japan, is home to around 2,000 residents.

Himakajima doesn’t really need any stoplights because the tiny island sees very little foot or car traffic. However, the children who grow up on the island may not live there forever and  many will grow up to attend schools or find jobs on the mainland, so it’s important that they know how to cross a street with a traffic light.

In 1994, at the request of the local traffic safety association, stoplights were installed on the east side of the island so the town’s children could practice crossing the street like they would in a big city.

The annual children’s crossing has become so popular that people planning to visit the island often hunt online to catch wind of when the stoplight will be fully operational.

https://www.upworthy.com/worlds-strangest-traffic-light-japan