WTF Fun Fact 12685 – A Pristine Forest In A Sinkhole

But there are 30 giant sinkholes throughout China, and explorers who rappelled down into one of them in May of 2022 discovered that nature was hiding something from us – a pristine, ancient forest. In fact, we know so little about this ecosystem that it would very well harbor wildlife we’re never seen before!

The sinkhole is 630 feet deep, 1,004 feet long, and 492 feet wide. Some of the trees inside the sinkhole are 130 feet tall!

While he was not involved in the expedition, George Veni, the executive director of the National Cave and Karst Research Institute (NCKRI) in the U.S, told Live Science more about these features:

“The discovery is no surprise, Veni told Live Science, because southern China is home to karst topography, a landscape prone to dramatic sinkholes and otherworldly caves. Karst landscapes are formed primarily by the dissolution of bedrock, Veni said. Rainwater, which is slightly acidic, picks up carbon dioxide as it runs through the soil, becoming more acidic. It then trickles, rushes and flows through cracks in the bedrock, slowly widening them into tunnels and voids. Over time, if a cave chamber gets large enough, the ceiling can gradually collapse, opening up huge sinkholes.”

He also said China was an ideal place to find sinkholes with something worthwhile inside: “So in China you have this incredibly visually spectacular karst with enormous sinkholes and giant cave entrances and so forth. In other parts of the world you walk out on the karst and you really don’t notice anything. Sinkholes might be quite subdued, only a meter or two in diameter. Cave entrances might be very small, so you have to squeeze your way into them.” 

The sinkhole is located in a UNESCO world heritage location in the Guangxi Zhuang Autonomous Region, near Ping’e village in the county of Leye.

While we don’t usually think of sinkholes as harboring anything special, this one surely did. These giant sinkholes are called a “tiankeng” in Mandarin, meaning “heavenly pit.” –  WTF fun fact

Source: “Giant sinkhole with a forest inside found in China” — Live Science

WTF Fun Fact 12431 – The Disappearing Tuscan Village

Lake Vagli in Tuscany is a man-made reservoir created in 1946 when a dam was built nearby. At the time, the hydroelectric dam forced the 150 residents of the 12th-century medieval village to abandon it entirely and be relocated to the nearby town of Vagli Sotto.

However, when maintenance is done on the dam, the lake drains, and the village reemerges and becomes a popular tourist attraction. People have only seen the village four times since the dam was built – in 1958, 1974, 1983 and 1994. However, there will be another opportunity in 2023 when 34 million cubic meters of water are removed yet again.

In 1994, the last time the village was visible, nearly 1 million people came to see it, providing a significant tourism boon to the area. Visitors can see medieval homes, bridges, a cemetery, and a church.

If you’re planning a trip to Italy next year, plan to stop in Tuscany’s Lucca province for a look. But you may want to check on its progress first. The lake was supposed to be drained in 2021, and presumably, the pandemic stopped that. It takes an amazing amount of effort to reveal the village though, so the Italians are likely to make a big deal out of it. – WTF fun facts 

Source: “Italian village underwater since 1994 could resurface” — CNN