mmon land border with (except Armenia), leading to secondary roads passable with a car.
By bus
Europe
From Bucharest there is a daily bus to Istanbul at 4PM for 125 Lei. There are also several daily buses from Constanta, Romania and from Sofia, Bulgaria and from there you can get connections to the major cities of Europe. Another possibility is the bus from Athens in Greece via Thessaloniki. You may also find smaller bus companies offering connections to other countries in the Balkans.
Iran
There is a direct bus to Istanbul from Teheran in Iran which takes approx 48hrs and costs US$ 35.00 for a one-way ticket between Istanbul or Ankara and Tehran.
• Dogubeyazit/Bazerghan This Turkey/Iran border crossing is easily (and fast) done by public transport. Take a bus to Bazerghan and a shared taxi to the border (ca. 2-3$). Cross the border stretch per pedes and catch a a frequent minibus (ca. 5 TL, 15 minutes) to Dogubeyazit. Check the security situation in the region, due to the unsolved PKK conflict.
• There are also buses from Van to Urmia crossing the Turkey/Iran border at Esendere/Sero. The buses cost app. €13 and it takes more than 6 hr to finish the 300 km path. That's because of the poor roads, harsh snowy conditions during the winter and also many military checkpoints because of security reasons concerning the P.K.K..
This southern route is less frequent than the northern Dogubeyazit/Bazerghan, as it is much slower but therefor a scenic mountainous route. Make sure you get a clear idea about exchange rates if you want to change TL or Rial as the official bank at the border does not exchange these currencies and you have to deal with the plentiful black market.
Syria
From Aleppo in Syria a 3hr bus to Antakya costs S£250 departing at 5AM. There is also a minibus service at 3PM for S£350. From Antakya you can get connecting buses to almost