No sleep yet so we have a go:
When coming from Georgia near Savsat there is Karagol National Park. Definitely give a visit : 41.293863, 42.473844
Kars is an old city which ruled by Russians for 40 years. You can see some churches and buildings constructed by them. Goose and cheese is famous there ...
After Kars ride to Dogubeazit. Ishakpasa Sarayi is a wonder in the area. You will love it : 39.521135, 44.128739
Van... very nice city with famous breakfast houses. Ask from a local where to go for the local breakfast. You can try special fish from the lake too. Afterwards ride to Ahlat to visit world famous Seljuk cemetery... 38.743598, 42.459089
After Tatvan Before Bitlis there is a nice site named Ihsaniye Medresesi worth a visit: 38.408279, 42.106547
Bitlis is an old City. Nice people and nice food called Buryan or Biryan. Definitely give a try...
And Diyarbakir... Capital of Eastern Turkiye... With very old mosques, medersas and history. Visit Old Mosque (Ulu Cami) and Suleyman Cami... Visit also Hasan Pasha Han and Suluklu Han...
And eat Kaburga Dolmasi at Kaburgaci Selim Usta : 37.915663, 40.231092
Next stop will be Mardin... Walk in the town. Visit old churches ... Try the best food ...
Kasimiye Medresesi : 37.310313, 40.718620
DeyrulZaferan Monastery : 37.302507, 40.792047
Kebab is famous in Mardin... You can try Yusuf Usta or Rido...
Kiziltepe and Viransehir and SanliUrfa... It is the city of Prophets and hospitable people...
In Sanli Urfa give a visit to Balikli Gol and the tower which Prophet Abraham thrown to the fire from...
Liver Kebab and cigkofte is famous here. Cigkofte will be very hot and spicy. Be careful.
Food is famous also in Birecik. Give a try to kebab especially eggplant kebab... No regrets ...
Gaziantep. Walk in the old town. Bakircilar Bazaar, Elmaci Bazaar and Zeugma Museum worth a visit. Food is famous. Try lahmacun, beyran and kabab here but definitely baklava in the end... Taste it at Kocak Baklava (square/kare baklava) : 37.069870, 37.366777
In all Eastern Turkey, meat and local food is famous and people very friendly. Keep on smiling and you will get it back
As far as you are not into politics and sensitive talk, no problem.
I already spoken about security in the area. Not serious situation. Don't ride close to Syrian border and you are safe. Smile to police and soldiers. Try to explain them you are on RTW and travelling since you are a pensioner ...
Don't know where you will ride after Gaziantep... So no more advice for afterwards...
Enjoy your ride ...
Samy