To provide a building having a vibrational energy absorbing device capable of preventing amount of absorption of vibrational energy of the building from being restricted by diameter of a hole to absorb vibrational energy effectively.

This building has a column provided in an upper end part and having an extension part extended upward from the upper end part, a beam having two beam parts arranged at an interval therebetween and being parallel for each other to receive the extension part of the column between the beam parts, and the vibrational energy absorbing device arranged between the beam parts of the beam. The vibrational energy absorbing device has a bar-like member having one end part attached to the extension part of the column, a rotary shaft passing through the other end part of the bar-like member and attached to the beam, a plate-like member through which the rotary shaft passes, and a friction member adhering closely to the plate-like member.