Gradara Castle is a medieval fortress in the town of Gradara. It is protected by two walls, the outer one extending for almost 800 metres. Particularly striking is the view of the fortress and the underlying historic village at night

Corinaldo and the "well of polenta".
Corinaldo is very strategically located, between the larger cities of Urbino and Ancona. The medieval walls of the town are still almost completely intact - a unique view.

This cave was discovered in 1971 by a group of speleologists who, during a climbing trip, suddenly found a hole in the Vallemontagna mountain. Later, Abisso Ancona, a huge hall over two hundred metres high, and Sala dell’Orsa, a hall with a figure in the shape of a bear, were also discovered.