Saint Patrick's Day was made an official Christian feast day in the early 17th century and is observed by the Catholic Church, the Anglican Communion the Eastern Orthodox Church, and the Lutheran Church.
In some traditions, the children put out their empty baskets for the Easter bunny to fill while they sleep.
Skyscraper Day is a day to appreciate and admire the world's tallest skyscrapers.
Palm Sunday is a Christian moveable feast that falls on the Sunday before Easter.