Staff at Mori Building Urban Lab looks at a miniaturised 1:1000 scale version of Tokyo with projection mapping at its demonstration in Tokyo, Japan, April 26, 2021. Urban landscape developer Mori Building Co updated its elaborate three-dimensional depiction of Tokyo this week - a sprawling tapestry of model buildings - as the city goes through redevelopment for better accessibility and disaster resistance. REUTERS/Kim Kyung-Hoon

Miniature of National Stadium, the main stadium of Tokyo 2020 Olympics and Paralympics, is seen in a 1:1000 scale version of Tokyo at Mori Building Urban Lab in Tokyo, Japan, April 26, 2021. The Urban Lab project at Tokyo's Mori Building features a 1:1000 scale model of Tokyo that represents about 230 square kilometres (89 square miles) - the 13 wards at the heart of the Japanese capital. REUTERS/Kim Kyung-Hoon

Staff of Mori Building adds a new miniature of a building on a 1:1000 scale version of Tokyo at a photo opportunity at Mori Building Urban Lab in Tokyo, Japan, April 26, 2021. Mori Building senior manager Shinji Takeda said visualizing information is important for anyone involved in the city's development. REUTERS/Kim Kyung-Hoon

Staff at Mori Building Urban Lab adds a new miniature of a building on a 1:1000 scale version of Tokyo at a photo opportunity at in Tokyo, Japan, April 26, 2021. The miniature city, unveiled in 2019, is paired with projection mapping to help visualize information such as sea level and train lines. The company updates the model every year. REUTERS/Kim Kyung-Hoon

A miniature of Tokyo Sky Tree, is seen on a 1:1000 scale version of Tokyo at Mori Building Urban Lab in Tokyo, Japan, April 26, 2021. REUTERS/Kim Kyung-Hoon

Mori Building Urban Lab's staff look at a miniaturised 1:1000 scale version of Tokyo with projection mapping at its demonstration in Tokyo, Japan, April 26, 2021. REUTERS/Kim Kyung-Hoon