2 Best Sights in Paradise, Mount Rainier National Park

High on the mountain's southern flank, this center houses exhibits on geology, mountaineering, glaciology, and alpine ecology. Multimedia programs are staged in the theater; there's also a snack bar and gift shop. This is the park's most popular visitor destination, and it can be quite crowded in summer.

Equally popular in summer and winter, this trail is a 1¼-mile round-trip through subalpine meadows to an overlook point for Nisqually Glacier. The gradually sloping path is a favorite venue for cross-country skiers in winter; in summer, listen for the shrill alarm calls of the area's marmots. As one of the few paved trails in the park, it's stroller-accessible, making it a favorite for families. Easy.