Retro Japan in Photos: Gifu Civic Auditorium with partially conical structure

The Gifu Civic Auditorium, with a unique conical structure, is seen in a government district in the city of Gifu on May 18, 2022. (Mainichi/Koji Hyodo)

Straight and curved lines are seen on the exterior of the Gifu Civic Auditorium in the city of Gifu on May 18, 2022. (Mainichi/Koji Hyodo)

Makeup tables along the conical main hall's wall are seen in the dressing room of the Gifu Civic Auditorium in the city of Gifu on May 18, 2022. (Mainichi/Koji Hyodo)

The spiral staircase looks as though part of the ceiling has been cut out, as seen in the Gifu Civic Auditorium in the city of Gifu on May 18, 2022. (Mainichi/Koji Hyodo)

The atrium lobby of the Gifu Civic Auditorium, with pipes assembled three-dimensionally on the ceiling, is seen in in the city of Gifu on May 18, 2022. (Mainichi/Koji Hyodo)

The exterior of the Gifu Civic Auditorium's main hall covered with tiles in various colors is seen in the city of Gifu on May 18, 2022. (Mainichi/Koji Hyodo)

The Gifu Civic Auditorium's main hall looks as if its upper part has been cut off at an angle, as seen in the city of Gifu on May 18, 2022. (Mainichi/Koji Hyodo)

The staircase connecting the first basement floor through the second floor is seen in the Gifu Civic Auditorium in the city of Gifu on May 18, 2022. (Mainichi/Koji Hyodo)

A corridor that connects the lobby and the main hall is seen at the Gifu Civic Auditorium in the city of Gifu on May 18, 2022. (Mainichi/Koji Hyodo)

The atrium lobby of the Gifu Civic Auditorium, with pipes assembled three-dimensionally on the ceiling, is seen in in the city of Gifu on May 18, 2022. (Mainichi/Koji Hyodo)

A spiral lighting fixture is seen in the atrium lobby of the Gifu Civic Auditorium in the city of Gifu on May 18, 2022. (Mainichi/Koji Hyodo)

A doorknob that looks as if it contains red liquid is seen at the Gifu Civic Auditorium in the city of Gifu on May 18, 2022. (Mainichi/Koji Hyodo)

The main hall with the side walls in a folding screen shape is seen at the Gifu Civic Auditorium in the city of Gifu on May 18, 2022. (Mainichi/Koji Hyodo)

The Gifu Civic Auditorium's east wing with gentle curvilinear undulations is seen in the city of Gifu on May 18, 2022. (Mainichi/Koji Hyodo)

A beautifully curved railing of the spiral staircase is seen at the Gifu Civic Auditorium in the city of Gifu on May 18, 2022. (Mainichi/Koji Hyodo)