Much of the estimated wealth is real estate (churches, schools, universities, hospitals) and artwork that should not be sold as it is being used for charitable

Much of the estimated wealth is real estate (churches, schools, universities, hospitals) and artwork that should not be sold as it is being used for charitable or religious purposes or exhibited to the public. It’s hard to estimate since the “church” is composed of so many organizations. There was also a lot of excess wealth accumulated during the Middle Ages but I believe much of it was seized by governments over the last 500 years, varying from countries like France that even seized ownership of the church buildings to various dissolutions of religious orders and monasteries in other countries.