Complex sentence: The most remarkable religious building of San Sebastián, endowed with a strong verticality, and the largest of Gipuzkoa, its construction took place in the last years of the 19th century in a Historicist Neo-Gothic style.
Split into simpler sentences: The most remarkable religious building of San Sebastián, endowed with a strong verticality is the largest of Gipuzkoa. Its construction took place in the last years of the 19th century in a Historicist Neo-Gothic style.