31. Multnomah Falls, Oregon
Just a half-hour drive away from Portland, this two-tiered waterfall towers 611 feet above the craggy bluffs. Here in the Columbia River Gorge National Scenic Area, the blue water collects in a deep pool at the base of the falls.
32. Luray Caverns, Virginia
The otherworldly Luray Caverns are ensconced in the Blue Ridge Mountains. They’re reported to be “the most extensive” caverns in the eastern US. The ancient sand-tinted stalactites and stalagmites formed over millions of years and the meandering tunnels lead to large, echoing chambers.
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