Join 'festival' upcoming events being held in Estremera. Estremera is a picturesque town in Spain's autonomous community of Madrid, known for its well-preserved medieval architecture, including the Castle of Estremera and the Church of Nuestra Señora de la Asunción, as well as its beautiful natural surroundings, such as the Parque del Sureste and the Embalse de Entrepeñas, making it an ideal destination for history enthusiasts and nature lovers alike.