The three gates of the old city, the divided city, Nicosia, Cyprus

As you drive into Nicosia, towards the old city, you see the giant walls. The area was occupied by the Venetians, attempting to defend the area. They were over-run by the Ottomans (Turkish Muslims). Later came the British. 

I walked into Nicosia old city, in by one of the gates near the National Museum, but out by another. It wasn't until I looked at Turkish Nicosia in Wikipedia that I realized that two gates are on the Greek side and one is on the Turkish side. So if you enter by the Turkish side and return to the Turkish side, you are using the same gate. If you enter from the Greek side and return from the Greek side, you can only use two of the gates.

Here they are

The northern, Turkish side, the Kyrenia gate. Kyrenia is a city on the Northern coast of Cyprus.

Kyrenia gate, Nicosia, Cyprus. Once a lookout tower, watching for revolt from the Greeks, it is now a tourist office.

On the Greek side, on the East, is the Famagusta gate.

Wikipedia photo.

The Paphos gate is on the west and is the smallest gate. It is near the Cyprus museum.

Useful Websites

Turkish Occupied Cyprus, the northern side of the city

https://commons.wikimedia.org/wiki/Category:Famagusta_Gate

https://en.wikipedia.org/wiki/List_of_museums_in_Northern_Cyprus

The Greek south side

https://en.wikipedia.org/wiki/Kyrenia_Gate