Sumeru Mountain
Srimad-Bhagavatam
SB Canto 5
SB 5.1.30, Translation:
While so excellently ruling the universe, King Priyavrata once became dissatisfied with the circumambulation of the most powerful sun-god. Encircling Sumeru Hill on his chariot, the sun-god illuminates all the surrounding planetary systems. However, when the sun is on the northern side of the hill, the south receives less light, and when the sun is in the south, the north receives less. King Priyavrata disliked this situation and therefore decided to make daylight in the part of the universe where there was night. He followed the orbit of the sun-god on a brilliant chariot and thus fulfilled his desire. He could perform such wonderful activities because of the power he had achieved by worshiping the Supreme Personality of Godhead.