A lovely hidden waterfall right off the highway is well worth a stop.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

This Big Sur waterfall drops 80 feet directly into the Pacific Ocean, and inspired the hillside house up top.

A rare chance to get up close and personal with a 13-mile ribbon of ice near downtown Juneau.

On the Oregon coast there is a natural hole that seems to be draining the sea.

The largest cave chamber in Britain—big enough to fit a whole cathedral inside.

The most powerful waterfall in all of Europe.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

This large midwestern cavern features impressive rock formations and an underground waterfall.

Beautiful waterfalls grace a canyon visibly torn by a violent tornado.

This narrow canyon has been carved by the river over thousands of years into spectacular and curious forms.

This rare example of a "tidefall" is a spectacular drop from the cliffs down onto the beach.

A little-visited waterfall in an otherworldly landscape.

The bright red stripes streaking across the rocks are the star feature at this Icelandic waterfall.

This gaping hole in the middle of a remote mountain lake looks like a portal to another dimension.

Rare recess caves fill this unbelievably beautiful Ohio park.

Witnessing the might of this dessert-colored desert waterfall is a rare, powerful treat.

This beautiful grotto is one of those places where you can't believe you're just outside Austin.

A peaceful, unique botanical garden complete with waterfalls, mini islands, and swans.

This public space is speckled with the eerie remnants of a defunct amusement park.

An ancient glacial pothole waterfall in the heart of the Green Mountains.

Cascading outward, this waterfall creates the appearance of a flowing veil.

Housed inside a replica church, its collection honors the Black community displaced by the Halifax government.