Mendenhall Ice Caves, Alaska
The coldest place on this list of weirdest natural wonders might actually also be the toughest to get to! Do you think you have what it takes to scale the ridge and see this impressive glacier? Well, you’ll have to hike about 800 feet on slippery, steep, mountainous terrain.
But the view once you get there will be worth it. A river of ice still courses through the glacier formation. The Mendenhall ice caves sit inside a 12-mile glacier near Juneau, also requiring a kayaking trip to visit.
Unfortunately, the site is at risk due to climate change, so if you want to explore it, you might not want to wait too long.
These frigid blue tunnels have a spacey, science-fiction ambiance, producing scenes so eerie and fascinating that photographers who’ve visited are oftentimes accused of digitally manipulating their images!
