Hvannadalshnjúkur or Hvannadalshnúkur is a pyramidal peak on the northwestern rim of the summit crater of the Öræfajökull volcano in Vatnajökull National Park, Iceland. Its summit is the highest point in the country.
Wikipedia https://en.wikipedia.org/wiki/Hvannadalshnjúkur
Address Iceland
Coordinates 64°0'50.941" N -16°40'37.057" E