Sendai Mediatheque is one of the representative works of architect Toyo Ito. Seven slabs and 13 tubes with the appearance of fluctuating seaweed are surrounded by glass facades. The slabs have a thickness of 40 centimeters that is considered extremely thin for a building of this scale, and have been realized through means of welding techniques used in shipbuilding. Although the demand for shipbuilding is facing a decrease in Japan, its techniques have been inherited into the field of architecture. The first floor has a ceiling height of approximately seven meters, and by opening its large glass doors in the occasion of an event, the space becomes integrated with the 46 meters wide boulevard of trees.