Kerkouane (also Kerkuane) is in Tunisia.
A city of the Pheonician and Punic periods it was probably abandoned in 3rd century BC and, therefore, largely ignored by the Romans. As such it is probably the only example of its kind to survive. Noted for its clear demonstration of town planning techniques. The town and its necropolis are a UNESCO World Heritage List site.
Busses run from Kelibia and can drop you at the turn of for the ruins from which it is a 1.5km walk. A taxi there from Kelibia should cost about 4-10TD (€2.5-7)
The site could be visited as a day trip from Tunis, Hammamet or perhaps even Sousse
The remains are easy to walk around. Some form of transport from the main road may be useful as t is about a 1.5km walk
There is a small gift shop in the museum that sells tourist orientated products
The museum shop sells a few drinks and snacks
The best place to base yourself for accommodation would be the nearby town of Kelibia.