If you're thinking that looks like somebody pulled the plug on a huge cartoonish bathtub drain under a lake.... well, that's exactly what it is. That's Lake Berryessa in California, and the "drain" controls the water levels in the lake. According to the site the photograph is from, the drain is big enough to swallow your house (about 70 feet across) and it goes down almost 300 feet.
- Cracked. com
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