Tourists visit the historical Ajloun Castle in Ajloun, some 73 km north of Amman, Jordan, on July 19, 2020. Ajloun Castle is a 12th-century castle situated in northwestern Jordan. (Photos: Xinhua)

Tourists visit the historical Ajloun Castle in Ajloun, some 73 km north of Amman, Jordan, on July 19, 2020. Ajloun Castle is a 12th-century castle situated in northwestern Jordan.

Tourists visit the historical Ajloun Castle in Ajloun, some 73 km north of Amman, Jordan, on July 19, 2020. Ajloun Castle is a 12th-century castle situated in northwestern Jordan.

Tourists visit the historical Ajloun Castle in Ajloun, some 73 km north of Amman, Jordan, on July 19, 2020. Ajloun Castle is a 12th-century castle situated in northwestern Jordan.