The sail tower with its spire reaching into the sky at sunsetThe sail tower with its spire reaching into the sky at sunset
Waterfalls flow smoothly into the river below and the skyWaterfalls flow smoothly into the river below and the sky
The sky and the water are separated by the lights of the cityThe sky and the water are separated by the lights of the city
A beautiful field with a tree. the sky before a thunderstormA beautiful field with a tree. The sky before a thunderstorm
Видимая над землёй атмосфера — пространство в форме свода, купола. Верхняя часть полости рта.