Circles of latitude between the 65th parallel north and the 70th parallel north
circles of latitude

Following are circles of latitude between the 65th parallel north and the 70th parallel north. This includes the Arctic Circle, at 66°33′49.6″ north.
66th parallel north
The 66th parallel north is a circle of latitude that is 66 degrees north of the Earth's equatorial plane, approximately 61 kilometres (38 mi) south of the Arctic Circle. It crosses the Atlantic Ocean, Europe, Asia and North America.
This latitude also roughly corresponds to the minimum latitude in which midnight sun can last all night near the summer solstice.
At this latitude midnight sun lasts from about 12 to 29 June, and the sun is visible for 2 hours, 47 minutes during the winter solstice. At midnight on the summer solstice, the altitude of the sun is 0.00°.
Around the world
Starting at the Prime Meridian and heading eastwards, the parallel 66° north passes through:
67th parallel north
The 67th parallel north is a circle of latitude that is 67 degrees north of the Earth's equatorial plane, approximately 50 km north of the Arctic Circle. It crosses the Atlantic Ocean, Europe, Asia and North America.
At this latitude midnight sun lasts from approximately 2 June to 10 July, and the sun is visible for about 1 hour and 30 minutes during the winter solstice.
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