The Palacio de Telecomunicaciones, also known as the Palacio de Cibeles, is a stunning building located in Madrid, Spain. Completed in 1919, it was originally designed as the headquarters for the Spanish postal service. The architecture features a blend of neo-Gothic and modernist styles, making it one of the city's most iconic landmarks. Today, the Palacio serves as the headquarters for the City Hall of Madrid and houses the Cibeles Palace cultural center. Visitors can explore its beautiful interiors, including the grand staircase and impressive halls, while enjoying panoramic views of the city from its observation deck.