The Encyclopedia Britannica website states that Mexico's National Palace is the official office of the president of Mexico. It is located on the eastern side of the Zocalo--the town square of Mexico City.
According to mexicocity.com, the Mexican National Palace has been the seat of civil power since the days of the Viceroyalty of New Spain--Mexico--in 1535. It was built on ruins of the ancient Aztec capital and contains the federal treasury.
The Mexican National Palace is surrounded by a 500-block historic center, and murals by Diego Rivera adorn the interior walls, depicting scenes from Mexican history. It also contains a monument honoring Benito Juarez--a president of Mexico in the 1800s. As of September, 2010, websites such as city-discovery.com advertise the National Palace as a sightseeing point of interest for those traveling in Mexico.