By combining images taken almost simultaneously from the Ahead and Behind STEREO spacecraft, we have generated a 3D sequence of four images that track an active region over about a one-week period (April 29 -- May 5, 2007). The images were all taken in the 171 Angstrom wavelength of extreme ultraviolet light. Active regions, which are areas of intense magnetic activity, appear brighter in UV light. The region is seen moving from left to right as the Sun's rotation carries it along. We see arcing loops above the active region that reveal million degree C. particles spinning along magnetic field lines. Below we are providing the original pairs of frames from which the 3D sequence was made as well as the four 3D anaglyph images.
