A mystery steel monolith appeared out of nowhere on a hill in Hay-on-Wye, Wales, baffling locals. Footage taken by Craig Muir shows the strange structure shaped like a toblerone standing straight ...

Utah Department of Public Safety/AP But questions remain: The origin and purpose of the Utah monolith that started it all are still a total mystery.

For mossy monolith hikes, waterproof hiking boots are key - they'll keep your feet dry on slippery surfaces and during stream ...