Hogwarts is a castle.
Namdroling is comprised of a few dozen buildings, centered around four temples – which are somewhat castle-like.
Hogwarts is divided into Houses.
Namdroling’s charter forbids the formation of organizations based on race, views, because these could lead to schisms in the Sangha… like the rivalry between Slytherin and Gryffindor.
Hogwarts has Harry Potter, the Chosen One.
Namdroling has dozens of chosen ones, ie. reincarnate lamas.
Hogwarts educates young witches and wizards.
Namdroling educates monks and nuns, most of whom have no magical powers.
Hogwarts gets attacked by Lord Voldermort.
Namdroling gets attacked by… excessive hot weather? bus loads of tourists? bees?
Hogwarts’ professors are masters of various types of magic.
Namdroling’s lamas are masters of the various methods of attaining enlightenment.
Hogwarts students learn how to perform magic.
Namdroling students learn to cut through illusion with wisdom.
Hogwarts exists in the imagination of the world.
Namdroling exists in the world which exists in the imagination.