The Palacio de Minería was where mining engineers trained in the 19th century. A neoclassical masterpiece, the palace was designed by Tolsá and built between 1797 and 1813. Today it houses a branch of the national university’s engineering department. Visits are by guided tour only.
Since 1893 the palace has displayed four restored meteorites that struck northern Mexico 50,000 years ago, one weighing more than 14 tons. There's also a small museum on Tolsá’s life and work.