Tolfa

The old part, immediately below the ruined fortress Frangipane now has a feature plant in a semicircle, adapted to the shape of the conical hill, branch off from it three appendices latest, stretched on the sides of the main access roads. The volcanic nature and the presence of many metallic minerals has facilitated human settlement. The extension of the area reaches the Tyrrhenian coast, where is the village of Santa Severa Nord.

The old core which have stone houses of probable medieval structure and the fourteenth century from various arenas to the nineteenth century, the majority of simple Baroque style, as being Annibale Caro, where a shrine is well known seventeenth-century taste Bernini. Noteworthy are the remains of the castle walls and the fortress of the Frangipane. The collegiate is in the form of the eighteenth and nineteenth centuries, with the prevailing neoclassical, as well as the nearby diocesan seminary. Harmonica neoclassical architecture is the church of Santa Maria della Sughera at where the cemetery in the annexed convent houses the civic museum with Etruscan and Roman materials mainly.