Eternal Flame Falls, Chestnut Ridge Park, New York

The Eternal Flame Falls is a small waterfall in the Shale Creek Preserve, a section of theChestnut Ridge Park in New York. A small grotto at the waterfall's base emits natural gas, which can be lit to produce a small flame.

Dettifoss Waterfall, Iceland

Europe's mightiest waterfall rushes over rocks in Vatnajökull National Park, a place full of superlatives. It's Europe's largest national park (at more than 4,500 square miles) and it's home to Vatnajökull, Europe's largest glacier. The waterfall drops nearly 150 feet and is more than 300 feet wide.