A charming village in the province of Rieti, on the border with the Abruzzo region, on a hill with a difficult access, located South of Lake Turano. The first certain origins of Collalto Sabino go back to X century, when the neighboring populations, to escape from the repeated Saracen raids, decided to find a shelter between the mountains, building the center around a watchtower, which later became a castle. Based probably on the ruins of an ancient Sabine settlement, "Collis Altus" , over the centuries, it was contended by several Lords, for its strategic position between the Kingdom of Naples and the Papal State. In 1641 Nicola Soderini, overwhelmed by debts, ceded the lands to Cardinal Barberini, nephew of the reigning Pope Urban VIII, who commissioned improvements to the baronial castle and the palace and ruled the fief until the abolition of feudalism.

Sites of Interest:
- the Castle of Collalto, an impressive example of XV century military architecture, though renovated in following centuries, it still preserves typical elements of the period, such as the embattlements and watchtowers. After crossing the drawbridge, visitors find themselves directly in the courtyard. The fortress consists of a central square shaped tower, two circular corner towers and various strategically located bastions;
- the XI century Parish Church of San Gregorio Magno, which preserves inside a beautiful XVII century fresco;
- the Convent of Santa Maria, with a XV century portal;
- the remains of an ancient Abbey, built on the ruins of a Roman temple on Mount San Giovanni;
- Palazzo Latini (XVII century).