Left: continuum image of Mrk 273 showing stellar emission. A tidal tail extends to the south of the galaxy. Middle: continuum-subtracted [O III] 4959+5007 image showing emission of ionized gas. Two extended nebulae are observed in the NE and SW directions. The NE nebula contains several bright regions around its edge and is hollow at the center. Right: composite image of [O III] 4959+5007 in red and the continuum in blue. In the left and middle panels, the green dashed circles denote the locations of the outflow regions reported in RZ14, the red dashed circles denote the location of the bipolar superbubble reported in RV13, and the blue circles denote the two AGNs with X-ray detections. In the middle panel, the white dashed rectangles indicate the regions used in our line ratio analysis for the extended nebulae and the nuclear region in Section 3.5.