A divinity school is a division of a larger university. Harvard University, to use a well-known example, has Harvard Divinity School, just as it has its other divisions, such as Harvard Law School. This comes from the traditional model of higher education, when theology was viewed as an essential part of education in general.
Like seminaries, divinity schools offer graduate degrees, and a bachelor’s is required for admission. The academics at a divinity school are generally focused on the academic study of Christian theology and religion at a theoretical level.
That being said, most divinity schools have degrees, such as the Master of Divinity program, that will prepare students with the practical tools and education they’ll need for work in the ministry, much as a seminary would.
But divinity schools, unlike seminaries, are loyal to their university rather than to a certain denominations, and so their theology, with a few notable exceptions, tends to be more moderate, and students will be exposed to a wide range of perspectives and beliefs.
If you plan on exploring the world of academic research and publishing, would like to be exposed to a variety of denominational traditions, and are excited by the idea of a well-supported university environment that will give you a well-rounded education, a divinity school might just be for you.