The original St. Gangolf's Church was built in 958 AD, but replaced with a current one between 1284-1344. The Gothic parts were added around 1500 and Baroque elements between 1731-1746.References:
Padrão dos Descobrimentos (Monument to the Discoveries) is located along the river where ships departed to explore and trade with India and Orient. The monument celebrates the Portuguese Age of Discovery during the 15th and 16th centuries.
In 1958 the Ministry of Public Works, the Overseas Provinces and the Câmara Municipal of Lisbon, promoted the intent to construct a permanent Monument to the Discoveries. Between November 1958 and January 1960, the new monument was constructed in cement and rose-tinted stone, and the statues sculpted from limestone excavated from the region of Sintra.
Inaugurated on 9 August 1960, it was one of several projects nationwide that were intended to mark the Comemorações Henriquinas (the celebrations marking the anniversary of the death of Henry the Navigator).