Nomentum Ancient City & Monte Sacro Secret Paths

Escape to the forgotten Roman town of Nomentum (modern Mentana) via a low-carbon train ride on the regional FL1 line. This route uncovers archaeological ruins, a medieval castle, and the pristine natural area of the Macchia di Gattaceca, a protected forest with ancient oaks and a hidden hermitage. Start at the remains of the Roman villa of Villa dei Gordiani (actually in Rome, but less known), then take the train to Mentana for a hike up to the Castello Orsini. Insider tip: the castle's tower offers sweeping views of the Tiber Valley, and locals often picnic at the nearby spring of Acqua Acetosa – a sulfurous water source believed to have healing properties. This route is perfect for those wanting a real off-the-beaten-path adventure with minimal carbon footprint.