At first glance, the 16-story Gate Tower Building in Osaka, Japan may appear to have a giant hole, and upon closer inspection, you’ll realize that it’s a real highway for cars. It “has a double core construction, with a circular cross section; the Umeda Exit of the Ikeda Route of the Hanshin Expressway system (when exiting the highway from the direction of Ikeda) passes through the fifth through seventh floors of this building.” Continue reading to see more.

[Sources 1 | 2 | 3]