Ever played the game of Twister on water? The green, yellow, and brown polka dots that form on British Columbia's Spotted Lake each summer make it look like you could.
It's a far cry from the stereotypical landscapes of clear blue lakes, rolling green hills, and white-sand beaches that inspire most travelers -- and that's part of what makes strange natural wonders like Spotted Lake so thrilling. A recently discovered cave that grows crystals the size of four-story buildings, a lake the color of a strawberry milkshake, and a glacier that seems to bleed sound like they're from another planet, but can be seen right here on earth, and they remind us that there's plenty of mystery left to explore.
For billions of years, our planet has been a work in progress. Wind, water, pressure, minerals, heat, and lesser-understood forces mold and shape our environment, carving out caves and canyons, flooding and drying lakes, shaping mountains, shifting shorelines, moving the ground beneath our feet, and creating all manner of strange formations.
Seeing is believing, so take our tour of the strangest natural wonders -- and keep an eye out for what the powerful planetary forces may do next.