Torre Antel (Antel Tower) is the , 37-floor headquarters of Uruguay's government-owned telecommunications company, ANTEL, and is the tallest building in the country. It was designed by architect Carlos Ott. It is situated by the side of the Bay of Montevideo. The tower was completed by American Bridge Company and other design/build consortium team members on 15 March 2000. When its construction was announced, many politicians complained about its cost (US$40 million, plus US$25 million for the construction of the other 5 buildings of the Telecommunications Complex). Problems during its construction turned the original US$65 million price into US$102 million. Ciudad Vieja (Old City) Ciudad Vieja was the earliest part of the city to be developed and today it constitutes a prominent barrio of southwest Montevideo. It contains many colonial buildings and national heritage sites, but also many banks, administrative offices, museums, art galleries, cultural institutions, restaurants and night-clubs, making it vibrant with life. Its northern coast is the main port of Uruguay, one of the few deep-draft ports in the Southern Cone of South America. Montevideo's most important plaza is Plaza Independencia, located between Ciudad Vieja and downtown Montevideo. It starts with the Gateway of The Citadel at one end and ends at the beginning of 18 de Julio Avenue. It is the remaining part of the wall that surrounded the oldest part of the city. Several notable buildings are located here. The Solís Theatre is Uruguay's oldest theater. It was built in 1856 and is owned by the government of Montevideo. In 1998, the government of Montevideo started a major reconstruction of the theater, which included two US$110,000 columns designed by Philippe Starck. The reconstruction was completed in 2004, and the theater reopened in August of that year. The plaza is also the site of the offices of the President of Uruguay (both the Estévez Palace and the Executive Tower). The Artigas Mausoleum is located at the center of the plaza. Statues include that of José Gervasio Artigas, hero of Uruguay's independence movement; an honor guard keeps vigil at the Mausoleum. Palacio Salvo, at the intersection of 18 de Julio Avenue and Plaza Independencia, was designed by the architect Mario Palanti and completed in 1925. Palanti, an Italian immigrant living in Buenos Aires, used a similar design for his Palacio Barolo in Buenos Aires, Argentina. Palacio Salvo stands high, including its antenna. It is built on the former