Yes and every other church.
Days of Holy Obligation?
passover
abraham villafana at ehms
The High Holy Days of Rosh Hashanah and Yom Kippur are celebrated by Jews because God commands us to celebrate them (Leviticus ch.23).
Holy days are celebrated throughout the year in the Buddhist community. Some of these days would be for birthdays of Bodhisattvas, Magha Puja Day, Buddhist New Year and Vesak.
Confucius' Birthday is celebrated. Chinese New Year is celebrated in Confucianism(likewise in Buddhism & Taoism).
No, the Mass is celebrated every day.
The Black Mass was celebrated during the times of Christian Holy Days. The Back Mass was a mockery of the Christian Mass and is said to be held by a coven of witches.
Holy Saturday is celebrated the day after Good Friday.
Feast Days of Mary, Queen of the Apostles are holy days celebrated by Christians in a Church year. These days are celebrated in reverence to Mary, mother of Jesus. The number and in some cases dates of Marian Feasts vary in different Christian denominations.
Church, cathedrals, shore of the lake in my backyard...just a few.
There are cathedrals of this name in various parts of the world. They are either Anglican or Catholic.