Kingdom of Ash (Throne of Glass, #7)

by Sarah J. Maas

She passed through a world where a great city had been built along the curve of a river, the buildings impossibly tall and glimmering with lights. Passed through a world of rain and green and wind.

She passed through a world of snowcapped mountains under shining stars. Passed over one of those mountains, where a winged male stood beside a heavily pregnant female, gazing at those very stars. Fae.

I think she is passing through Velarís from the ACoTAR series!