Active galactic nuclei (AGN) are among the most luminous objects in the universe. Their overall structure is commonly described by the unified model, which includes a supermassive black hole, an accretion disk, an X-ray emitting corona, the broad- and narrow-line regions, and an obscuring dusty torus. However, because these components span extremely small physical scales, directly resolving them remains challenging. In this talk, I will discuss our recent efforts to probe AGN structure using X-ray observations, with a particular focus on the corona and the torus.
