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816 Project, the world's largest man-made cave, transforms into new cultural and tourism landmark_我的网站

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一 | By Liu Xinyu (ECNS) – With the recent surge in popularity of the "503 Geocentric Roaming Loop" in Fuling District of Chongqing, the 816 Project Scenic Area -- the world's largest man-made cave structure -- has drawn a large number of domestic and overseas tourists, with its attractions enhanced by sound, light and electrical technologies. Construction of the 816 Project began in 1966. More than 60,000 builders participated in the project. The total excavated area exceeds 104,000 square meters. The cave complex contains 18 large caverns and more than 130 tunnels, branch caves and vertical shafts. The main cavern, standing 79.6 meters high with 12 floors, is entirely hidden inside the mountain and is known as the "world's largest man-made cave." The lighting system uses LED projection and laser mapping technology to enhance the technological atmosphere while preserving the original appearance of the project, allowing visitors to experience the mystery of this "underground Great Wall." Stepping into the cave, visitors are greeted by a visual spectacle where light and shadow intertwine with the industrial texture of the space. Giant projection screens on the rock walls display futuristic cyberpunk imagery. In the core areas, shifting lights create a futuristic atmosphere. In recent years, local authorities have leveraged the site's unique historical and spatial resources through preservation, utilization and integration of culture and tourism, bringing this underground nuclear facility into the public eye and attracting a growing number of visitors from across the country and around the world. 。 San Jose, Oct 22 (UNI) A small plane with five German nationals on board went missing near the Caribbean coast off Costa Rica on Friday afternoon, Public Security Minister Jorge Torres confirmed.

The minister said on Friday the plane was heading for the airport in Costa Rica's eastern province of Limon when it disappeared from the radar.

"Around 6:00 in the afternoon we received an alert about a private flight from Mexico to the Limon airport, this aircraft was traveling with five passengers of German nationality," Torres said in a video announcement.

The plane lost communication with the control tower near the Barra de Parismina area in the northeastern part of the country, a region that is difficult to access due to its natural channels and mangroves, the minister said.

Emergency protocol with the Coast Guard and Air Surveillance Service was activated after the incident, said the official, adding that searching operation had to be suspended due to late hours and bad weather and would be resumed at 5:00 a.m. Saturday morning.

So far the official has not disclosed identities of the pilot and passengers of the plane.
UNI/XINHUA PRT。