Interactive art display spreads color around Japan’s Hiroshima Castle and its grounds

It takes only one touch to send waves of colored light sweeping across the ground in front of Hiroshima Castle. The walled garden in front of the 430-year-old structure has been turned into a glowing, interactive, nighttime wonderland honoring 400 years since the Asano Clan made Hiroshima its home.

Built in 1589, the structure is considered one of Japan’s top flatland castles. The art display — called the Digitized Hiroshima Castle — is a celebration of Nagaakira Asano, the first of the Hiroshima daimyo, or feudal lords, taking control of the castle in 1619.

His family maintained the castle for 12 generations, approximately 250 years, before the castle and surrounding lands were returned to the emperor in 1869.

The grounds surrounding the castle have been decorated with giant glowing eggs, called ovoids by the event designers. Some are more than 10 feet tall and change color and omit a sound unique to the new color as they are touched.

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