Sunset on the longest day

Sunset on the solstice was almost 10pm BST and here the sun set in the north west. It's wonderful having sunlight all evening. I was reading about summer solstice in Barry Lopez's book Arctic Dreams. He points out that on the summer solstice at the exact geographic North Pole, the Sun would go round in a circle at the same height above the horizon for 24 hours. It stands to reason but is still amazing.