The Roman Temple of Alcántara is a really old building that was made by the Romans a looooong time ago.
It was built in a place called Alcántara, which is in Spain. The Romans used to live in Spain a long time ago, and they built lots of things there that are really cool to see today.
The temple is made out of stone, which is really hard and lasts a long time. It has a special shape with columns and a roof that is flat on top.
The people who used this temple a long time ago believed in Roman gods and goddesses. They would come to the temple to pray and ask for good things to happen to them.
Even though it's really old, the Roman Temple of Alcántara is still standing strong and people can go visit it and learn about what life was like a very long time ago.