A display apparatus comprising a display configured to display a plurality of spaces in a form of a polyhedron is provided. The plurality of spaces each correspond to a different category. The apparatus displays a rotatable Graphical User Interface (GUI), a user interface is configured to receive a user interaction for the GUI, and a controller is configured to, when one of the plurality of spaces in a form of a polyhedron is selected as the GUI is rotated according to the user interaction, control to display a selected space as a main space, and display at least one content-related information included in a category corresponding to the selected space.