  We present an X-ray tour of diffuse emission in the 30 Doradus star-forming
complex in the Large Magellanic Cloud using high-spatial-resolution X-ray
images and spatially-resolved spectra obtained with the Advanced CCD Imaging
Spectrometer aboard the Chandra X-ray Observatory. The dominant X-ray feature
of the 30 Doradus nebula is the intricate network of diffuse emission generated
by interacting stellar winds and supernovae working together to create vast
superbubbles filled with hot plasma. We construct maps of the region showing
variations in plasma temperature (T = 3--9 million degrees), absorption (N_H =
1--6 x 10^{21} cm^{-2}), and absorption-corrected X-ray surface brightness (S_X
= 3--126 x 10^{31} ergs s^{-1} pc^{-2}). Enhanced images reveal the pulsar wind
nebula in the composite supernova remnant N157B and the Chandra data show
spectral evolution from non-thermal synchrotron emission in the N157B core to a
thermal plasma in its outer regions. In a companion paper we show that R136,
the central massive star cluster, is resolved at the arcsecond level into
almost 100 X-ray sources. Through X-ray studies of 30 Doradus the complete life
cycle of such a massive stellar cluster can be revealed.
