In the 1980s many parts of Old Havana, including the Plaza de Armas, became part of a projected 35-year multimillion-dollar restoration project, for Cubans to appreciate their past and boost tourism. In the past ten years, with the assistance of foreign aid and under the support of local city historian Eusebio Leal Spengler, large parts of Habana Vieja have been renovated. The city is moving forward with their renovations, with most of the major plazas (Plaza Vieja, Plaza de la Catedral, Plaza de San Francisco and Plaza de Armas) and major tourist streets (Obispo and Mercaderes) near completion.