Sendai, on the Japanese island of Honshu, is the largest city in the Tohoku region, northeastern Japan. It was founded in 1601 by Date Masamune, a samurai whose name is known to all Japanese.

Sendai Daikannon suffered no serious damage in the Great East Japan Earthquake and tsunami in 2011. But cracks have become increasingly noticeable in recent years. The Climbing Works conservators ...