A Spring Tour of IAT Spain
From there they traveled a short distance to Alcántara, where the world's largest Roman bridge at 194m long and 71m high, crosses the Tagus River
at the eastern end of the 25,088 hectare Tagus International Nature Park.
Alcántara is derived from the Arabic word al-QanTarah, meaning "the bridge". It was conquered by the North Africa Moors in the 8th century and ruled until their expulsion five centuries later.
For more on the story, go towww.iat-sia.org.