The Work of Structural Engineers in Japan will keep you wondering(see)

One of the most curious building in Japan is the Gate Tower Building in Osaka, Japan. The 5th, 6th and 7th floors of this 16-story office building is occupied by an express highway - passing right through the building.
The highway does not make contact with the building, and a structure surrounding the highway keeps noise and vibration out.
HAIL ENGINEERS.