The center of the capital was completely destroyed by an earthquake in December 1972 and there was further severe damage during the civil wars of 1978-1979. In the old center of Managua, the National Palace and the Cathedral are excellent examples of colonial architecture. There are several museums of note in Managua, one of the most interesting of which is Las Huellas de Acahualinca which houses the site where 9000-year-old footprints were found – testimony to Nicaragua’s pre-historic past. There are several volcanic crater lagoons in the environs of Managua – centers of watersports and residential development with boating, fishing and picnicking facilities. Laguna de Xiloa is the most popular of these lagoons. Boats can be hired on the shores of Lake Managua for visiting the still-smoking Momotombo volcano and the shore villages. A canopy tour above Tiscapa Lagoon flies visitors across the crater from platforms connected by zip lines.