Managua pieces from new promising artists, are exhibited. In the numismatic hall there is a permanent exhibition of Nicaraguan coins, bills, and memorial medals from throughout Nicaragua's history. Managua is also home to "Museo Sitio Huellas de Acahualinca" (the Museum of Acahualinca), where the Ancient footprints of Acahualinca, fossilized Paleo American footprints made 2,100 years ago, are engraved in volcanic ash. The museum is located in west Managua in the Acahualinca neighborhood. In addition to the footprints, the museum also displays artifacts found in other localities around the country. Artifacts such as mammoth footprints, pre-Columbian tools, a skull from León Viejo,
Managua its members. Chief of Police, Aminta Granera, stated that vehicles robberies has reduced; as only 200 reports were filed in 2006. The German government funded the construction of a water treatment plant with plans to process the city's sewage and clean the Managua lake. Also pending is a mega-project to reconstruct the old center of Managua, and to introduce a monorail system, to alleviate future transportation problems in Managua. Managua is the home of most national broadcasting television channels as well as the major national newspapers. Some of the larger television channels include: Canal 2, Telenica, Canal 10, Canal 15