Steinerne Brücke in Regensburg is a 12th-century bridge across the Danube linking the Old Town with Stadtamhof. For more than 800 years, until the 1930s, it was the city's only bridge across the river. It is a masterwork of medieval construction and an emblem of the city.
Charlemagne had a wooden bridge built at Regensburg, approximately 100 metres east of the present bridge, but it was inadequate for the traffic and vulnerable to floods, so it was decided to replace it with a stone bridge. The Stone Bridge was built in only eleven years, probably in 1135–46. Louis VII of France and his army used it to cross the Danube on their way to the Second Crusade. It served as a model for other stone bridges built in Europe in the 12th and 13th centuries. For centuries it was the only bridge over the river between Ulm and Vienna, making Regensburg into a major centre of trade and government.
The Stone Bridge is an arch bridge with 16 arches. At the south end, the first arch and first pier were incorporated into the Regensburg Salt Store when it was built in 1616–20, but remain in place under the approach road to the bridge. An archaeological investigation was performed in 2009, and revealed fire damage during the Middle Ages.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).