Getaways with solo

Glacier National Park, Montana

A concrete-cylinder glamping tent on 37 private acres near Coram, Montana, seven miles from Glacier National Park's west entrance, sleeping two.

Merzouga, Drâa-Tafilalet

A dome tucked into the dunes of Erg Chebbi near Merzouga, Morocco, built for stargazing and quiet nights for couples or solo travelers.