Go-An Teahouse exterior

A Whimsical Teahouse Pops Up on a Grassy Mound in the Middle of Tokyo

4 of 7

The exterior of the teahouse is clad in charred cedar—known in Japanese as yakisugi. It’s made by burning and carbonizing the surface of wood. The charred layer protects the timber from deterioration and enhances its resistance to fire. Passersby can see what is happening inside the teahouse through a large window that frames the tea ceremony room.