9. Lake Natron – Tanzania

Lake Natron, located in Tanzania, is a stark and otherworldly landscape. Known for its high alkalinity, the lake’s waters are dangerous to most life forms. The extreme pH levels prevent many animals from surviving its waters, but those that do often end up as eerie calcified statues.
The danger lies in the lake’s toxic properties and the intense heat of the surrounding region, making it an unforgettable but hazardous destination for those brave enough to visit.