In the heart of the oldest quarter of Magong lies a remarkable monument to the engineering of the past — the Four-Eyed Well. This unique historical site, located on the Taiwan archipelago, is a deep stone shaft covered by a massive slab with four circular openings. The well earned its unusual name from these "eyes," which allowed locals to draw water simultaneously from different sides.

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It is considered one of the oldest water sources in the region and holds the status of a Class 3 Historical Monument. The well is approximately 5.6 meters deep. Its design was not only practical for the needs of a busy market but also safe: the narrow openings protected people from accidentally falling into the water.
Today, this site has become an important cultural landmark surrounded by traditional architecture. The Four-Eyed Well is not just an ancient reservoir, but a living testament to how ingenuity helped people manage daily life in a coastal environment where clean fresh water was always worth its weight in gold.