Borgo del Lazio at the foot of Monte Cimino, has a unique work in the world, the Villa of Wonders, also called Sacro Bosco, often referred to as the Park of Monsters.

It was designed by Prince Vicino Orsini and the great architect Pirro Ligorio in 1552. The park, while fully fitting into the erudite architectural-naturalist culture of the second half of the sixteenth century, is unique. The refined Italian gardens are built on criteria of geometric and perspective rationality. with ornaments such as large terraces, fountains with water features and mannerist sculptures. On the contrary, the cultured prince of Bomarzo dedicated himself to the creation of an eccentric "grove" by having enigmatic figures of monsters, dragons, mythological subjects and exotic animals sculpted in the peperino boulders, emerging from the ground, which he alternated to a leaning house, a funerary temple, fountains, seats and obelisks on which he had mottos and inscriptions engraved. The Sacro Bosco, not respecting the sixteenth-century customs, presents itself as an irregular solution; the different elements are independent from each other from any perspective relationship and are not united by coherence of proportions. Everything is invented with iconological criteria that escape even the most passionate scholars, an authentic labyrinth of symbols that envelops those who enter physically or intellectually. These are the reasons that inspired many artists of the time, such as Annibal Caro, Bitussi and Cardinal Madruzzo. Following the death of Vicino Orsini, no one cared more about this place which after centuries of abandonment has been re-evaluated by intellectuals and artists such as Claude Lorrain, Johann Wolfgang von Goethe, Salvador Dali, Mario Praz and Maurizio Calvesi.