Spooky lakes: 25 strange and mysterious lakes that dot our planet

Lake Superior (United States and Canada)

Roopkund Lake (India)

Lake Karachay (Russia)

Lake Nicaragua (Nicaragua)

Nyiragongo Lava Lake (Democratic Republic of the Congo)

Toxic Lake (Romania)

Yellowstone Hot Springs (Wyoming, Montana, Idaho, United States)

Kaindy Lake (Kazakhstan)

Cenotes (Mexico)

Jellyfish Lake (Palau)

Kaali Crater Lake (Estonia)

Kawah-Ijen (Indonesia)

Lake Vostok (Antarctica)

Lake Maracaibo (Venezuela)

Lake Nyos (Cameroon)

Pitch Lake (Trinidad)

Spirit Lake (Washington, United States)

Qiandao Lake (China)

Lake Chagan (Kazakhstan)

Underwater Brine Lakes (Gulf of Mexico)

Lake Natron (Tanzania)

Crater Lake (Oregon, United States)

Lake Guatavita (Colombia)

The Shaft (Australia/near Mount Gambier)

Lake Baikal (Russia).