Getaways with stargazing

Whitefish, Montana

Slopeside treehouse at Whitefish Mountain Resort with a private hot tub, sleeping 6 across two bedrooms, from $899 a night with a 3-night minimum.

Santa Teresa, Puntarenas

A 13-bedroom treehouse retreat near Playa Hermosa in Santa Teresa, Costa Rica, built around a large sauna and jungle lookout decks.