Given the United States Patent and Trademark Office’s broad definition of materials acceptable to copyright, you...
Given the United States Patent and Trademark Office’s broad definition of materials acceptable to copyright, you can seek intellectual property protection on a wide range of things.
The list of possible copyright content includes, but is not limited to, books, articles, songs, poetry, computer code, movies, sculptures, painting, choreography and architecture. Since successful copyright applications are decided on an individual basis, it’s impossible to create an exhaustive list of everything that can potentially be subject to copyright protection.
It's also important to note that a copyright is different from a trademark. For a good explanation on the distinction between the two, read this: What's the Difference Between a Trademark and a Copyright?