The history of Črni Kal is rich: in the nearby quarry, they found remains of the Paleolithic and Roman era, while the rock edge features the remains of the castle or fortress of San Sergio from the 11th century, which are accessible by a metal bridge.
The Karst-Istrian village has a lot of architectural pearls, among which is also the so-called Benko House from 1489 (registered in the Register of Cultural Heritage of the Republic of Slovenia), which is known as the oldest country house in the municipality of Koper. This house is also the oldest known marked and dated object of the folk architecture in Slovenia, with traces of late Gothic and Roman design.
Also other homesteads are worth visiting: The homestead at Črni Kal 17 (with the remains of a former homestead with a Karst-courtyard (korto), and preserved, stone-cut entrance with an inscription A.V.47 and year of 1863), the homestead at Črni Kal 37 (from 1818; consisting of residential buildings and outbuildings with rich stone-cut details) and the house at Črni Kal 38 (built between the 16th and 18th centuries, a low single-storey house with partially preserved typical architectural features of the villages under the Karst edge).
The peculiarity of the village is a Baroque Church of St. Valentine with an independent bell tower from 1802. The bell tower is visibly inclined due to the specific soil features.
It is interesting that the inhabitants of the village benefited from the favourable climate by planting various Mediterranean plants, and sold the fruits at the markets of coastal towns and Trieste, while wine was sold even in Vienna.