Hario Radio Tower

Three concrete towers form an equilateral triangle with 300-meter sides, each structure reaching a height of 136 meters near Saikai Bridge.

The Japanese Navy constructed this communication facility in 1922, which transmitted the signal that initiated the Pearl Harbor attack during World War II.

The towers represent Japan's early 20th-century military infrastructure and maintain status as an Important Cultural Property of Japan.

Visitors can access the site by taking a 50-minute bus ride from Sasebo Bus Terminal to Takahata, followed by a 30-minute walk.

This facility stands as the last remaining long wave communication structure from pre-war Japan, with power supply room ruins nearby.

Location: Nagasaki Prefecture

Inception: 1922

GPS coordinates: 33.06651,129.75134

Latest update: May 27, 2025 08:40