Hartford, CT

ZIP code 06140 is located in Madrid, Spain. This area is home to the iconic landmarks of the Royal Palace of Madrid, a lavish 18th-century palace that serves as the official residence of the Spanish royal family, and the Almudena Cathedral, a stunning neoclassical cathedral that is a prominent feature of the city's skyline. Additionally, the Plaza de Oriente, a picturesque square lined with statues of Spanish monarchs, is also situated within this ZIP code.