by the Direcção-Geral dos Edifícios e Monumentos Nacionais (DGEMN) (General-Directorate for Buildings and National Monuments). In 1956 the Serviços dos Monumentos Nacionais (National Monument Services) completed some renovations of the Church, while a recuperation of the fort began with a smaller conservation project in 1959. As part of the historical centre, the Fort was included as part of the UNESCO designated World Heritage Site in 1983. Visitors to Monte Brasil, apart from the many walking trails, can be guided by members of the armed forces, who provide historical interpretation tours of its grounds. Between 1995 and 1997 (on three separate projects) the walls of the fort were consolidated and strengthened. In 1997, the Church of São João Baptista was completely renovated (including both interiors and exteriors). The reconstruction of the wall along the Bay of Fanal was begun in 2000, and completed by 2001, when the recuperation of the roofs of the hermitage of Santa Catarina were initiated. In 2011, the cost to repair and maintain the site was estimated at 100,000 Euros annually, which included maintaining the walls straight and spaces clean, yet costs associated with repairs to many of the buildings, drainage systems and water networks, electrical networks, was estimated at four million Euros. Architecture The fortress dominates the promontory of Monte Brasil, a volcanic cone situated along the southern coast of Terceira, at the extreme tip of the city of Angra linked by an isthmus, on either side of which it is surrounded by the Atlantic Ocean, and the bays of Fanal and Angra. The actual structure covers an area of 3 km2 and is constituted a principal nucleus with a 111.5 metre long curtain of walls (three bastions and two partial-bastions) that extend 570 metres, to a maximum height of 15 metres and while at most 2.6 metres wide. Within these walls, some the lands was excavated to about 10 metres, and trenches (of equal depth) are located outside the walls. In addition, the edge of each the fort's limits are another two walls that encircle the peninsula. The five bastions that reinforce the wall at the isthmus are, from west to east: Bastion of Santa Catarina (Saint Catherine), over the cliffs of Fanal, with seven cannon and crowned by the Torreão dos Mosquitos (a rounded lookout) used as a forward sight for the location's batteries with its own gunpowder magazine. It is connected by two