Solar events.

I’ve been following this innovative architectural project closely through the media. The Sun Tower, a 50-meter-high structure designed by Open Architecture in China, features two slanted concrete shells facing the Yellow Sea and integrates a theater, galleries, library, café, bar, and “phenomena space.”
The design is guided by careful solar studies: the northern edge aligns with noon sunlight at the equinoxes, while the entrance tunnel frames the winter solstice sunset. A semi-open central theater faces Zhifu Island, allowing visitors to witness the summer solstice sunrise.
The tower’s concave inner shell amplifies ocean sounds, which resonate through the structure to the amphitheater at its base. A series of elliptical rings radiate from the central plaza, symbolizing planetary orbits. These intersect with a water channel, marking shadows during equinoxes, while an outer ring with fountains celebrates the twenty-four solar terms of the traditional Chinese calendar.
At the tower’s top are a library and the Phenomena Space, where visitors can enjoy panoramic ocean views. This semi-outdoor deck, featuring an oculus, lets rainwater gather in a tranquil pool, enhancing the contemplative atmosphere.