The high tower a church is called a steeple.
A bell tower in a church is typically referred to as a "campanile." The term "campanile" originates from the Italian word for "bell" (campana) and is commonly used to describe a freestanding tower or structure that houses bells. Campaniles are often a distinctive feature of church architecture and serve both functional and symbolic purposes within the religious context.
A church tower is called a steeple. It is often a tall structure, typically located at the front of the church building, and may contain bells or a clock.
The main structure is a bell tower. Where the bells are housed at the very top of the bell tower is known as the belfry.
Steeple Spire
steeple
I think you mean a steeple, or perhaps a spire which sits on top of the steeple?
The Steeple. The belfry is where the bells are housed.
Church steeple or bell tower
Minaret. The Steeple can be a neutral term in architecture and can therefore apply to the minaret of a mosque, but steeple usually refers to the tower placed on the side of a church.
A church tower that tapers (that comes to a point at the top) is called a steeple. The base is usually straight and the top bit that comes to the point is called the spire.
William Wallace