The Earth's axial tilt of approximately 23.5 degrees causes some areas to receive constant sunlight during certain times of the year. When a pole(North to South) is tilted towards the sun, the regions around it (within the Arctic or Antarctic Circle) stay illuminated throughout the day and night.
Norway, also referred to as the "Land of the Midnight Sun," experiences nonstop daylight from May thrugh late July, with 76 days in which the sun doesn't set. The sun never sets in Svalbard, the northernmost inhabited territory of Norway, from April 10 to August 23.
Over 3,000 people live in Nunavut, which is in Canada's Northwest Territories and is situated two degrees above the Arctic Circle. Here, Summer lasts for two months straight with the sun visible. Winters, on the other hand, offer almost thirty days straight of complete darkness.
In Barrow, Alaska, there is constant daylight from late May until late July. About 30 days of polar night, with no sunrise, last about 30 days in the region from November onward.
From May to August, Sweden has prolonged daylight, with the sun rising at 4AM and setting at midnight.