Xianren Bridge, Natural limestone arch in Guangxi Province, China
The natural arch spans 121.9 meters across the Buliu River, making it the longest natural arch span measured and documented in the world.
The Natural Arch and Bridge Society conducted measurements of the formation in October 2010, following its initial discovery through Google Earth in 2009.
Local residents refer to the structure as Fairy Bridge, reflecting Chinese traditions of connecting natural formations with supernatural or mythological elements.
Visitors need to arrange a three-hour rafting expedition on the Buliu River to reach this natural formation in the northern region of Guangxi.
The limestone arch remained unknown to researchers until 2009, despite its record-breaking span that surpasses Utah's Landscape Arch by over 30 meters.
GPS coordinates: 24.68770,106.80000
Latest update: May 25, 2025 10:25
Geological forces have carved openings, arches, and caves into rock formations across continents through millions of years of erosion. Water, wind, and weathering have shaped these natural structures from various rock types, creating landmarks that reveal the Earth's ongoing transformation. The formations appear in diverse environments, from coastlines where ocean waves carve passages through limestone cliffs to desert regions where wind erosion creates openings in sandstone walls. This collection spans locations such as Durdle Door along England's Jurassic Coast, where a 200-foot (60-meter) arch rises from layers dating to the Mesozoic era. The Faraglioni Rocks off Capri reach heights of 360 feet (109 meters) and include a natural passage navigable by boat. In landlocked regions, formations like the Eyes of God in Bulgaria's Prohodna Cave display symmetrical ceiling openings where sunlight penetrates the rock. Desert sites such as Las Ventanas in Argentina's Andes showcase wind-carved arches in remote sandstone landscapes. Each location offers direct evidence of erosion processes that continue shaping these geological features, from readily accessible coastal points to isolated areas requiring significant travel to reach.
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