Cahors (French pronunciation: [kaɔʁ]; Occitan: Caors [kaˈurs, ˈkɔws, ˈkɔw]) is the capital of the Lot department in south-western France. Its site is dramatic, being contained on three sides within a U-shaped bend in the River Lot known as the presqu'île ("peninsula"). Today Cahors is perhaps best known as the centre of the famous AOC 'black' wine known since the Middle Ages and exported via Bordeaux, long before that region had developed its own viniculture industry. Wikipedia
A place in France, Cahors is an interesting place to visit, given its unique culture, history and character. After your splendid visit to Cahors, you can proceed to an important near-by city of Carcassonne. Carcassonne is bestowed with interesting set of attractions like Canal Du Midi, Basilica Of Saint Nazaire, Cathar Castles. Also, to reach Cahors, you'll have to take a flight to Carcassonne; so its not really a detour. And even if it is, the city is worth paying at least a quick visit. Tour packages of Cahors are of 1 to 2 days duration.
Yes,it is that simple really! Enjoy your trip! Keep travelling!