Centre Històric d'Ulldecona
And when we talk about the Montsià, we must undoubtedly point out Ulldecona. Its historic centre has many buildings from different periods worth mentioning, but above all the Church of Sant Lluc, in Catalan Gothic style, which stands imposingly in the centre of the town, and the many stately houses such as the Casa de la Comanda and the Casa de Mossèn Domingo Solà.
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In Ulldecona we also find a series of 17th–18th-century Baroque buildings in the streets of la Puríssima and Sant Cristòfol, with interesting doorways, entrances and barbicans.
Scattered both inside and outside the old town are also Noucentista and Modernista houses, notably the Casa de la Feligresa, the work of the famous architect Cèsar Martinell (a disciple of Gaudí), the former Church of the Roser and the former Convent of Sant Domènech, which is now the Town Hall.
Since October 2013, the old town can be visited with any smartphone with internet access.