Ilvermorny Castle

Ilvermorny Castle is a school located at the highest peak of Mount Greylock and housed Ilvermorny School of Witchcraft and Wizardry. It is concealed by several powerful enchantments which sometimes makes it look like a wreath of misty cloud.

History
The castle was once a granite stone house constructed by Isolt Sayre and James Steward to be their home. When it eventually became a school, the cottage kept expanding until it became it became a castle..

Appearances

 * Pottermore