The Aniene is a river in central Italy, flowing through the Lazio region. It is approximately 99 kilometers long and is a tributary of the Tiber River. The river originates in the Simbruini Mountains and passes through several towns, including Subiaco and Tivoli, before joining the Tiber near Rome. The Aniene is known for its scenic beauty and historical significance. It has been a vital water source since ancient times, contributing to the development of nearby settlements. The river is also popular for recreational activities, such as fishing and hiking along its banks, attracting both locals and tourists.