Don't mistake this for a pool, either. This home in Westlake Village, California has a "tropical lagoon" — complete with cascading waterfall. It's listed at $14.9 million. Check out more photos ...

The lagoon also features underwater caves ... These breathtaking waterfalls and blue-green natural pools can be found on the ...

From Himalayan heights to tropical jungles, Asia’s waterfalls ... blue pools. That’s Kuang Si—a jungle gem near Luang Prabang where every level feels like its own hidden lagoon.