A small shrine, Mainichi Shrine, stands on the Palaceside Building rooftop. Built in 1939 (Showa 14) for safe flight prayers for The Mainichi's round-the-world flight aboard the "Nippon." Readers nationwide sent many omamori wishing safe flight, which were dedicated here.
The Mainichi, spurred by the Asahi's successful "Kamikaze" Tokyo–London flight, planned a "goodwill round-the-world flight across five continents and two oceans." On August 26, 1939, the "Nippon" left Haneda (Tokyo), first heading from Chitose Airport (Hokkaido) toward Nome, Alaska, then visiting U.S. cities, South America, Spain, and Italy, via Karachi, Bangkok, and Taipei, returning safely to Haneda on October 20. Flight time: 194 hours; distance: 52,860 km—without mechanical trouble, showcasing Japanese aircraft to the world.
University entrance exams have ended; exam season is in full swing. Yushima Tenjin is Tokyo's famous exam shrine—but Mainichi Shrine has remarkable benefits: a round-the-world flight overcoming many hardships. "Absolutely won't fall!" Please come to pray.
The Palaceside Building rooftop is open weekdays 11:45 a.m.–2:00 p.m. (closed in rain or bad weather).