Rail tunnel under the Bosphorus linking the European and Asian suburbs.
Cost: Standard transit fare
Booking apps in Turkey
Agreeing the fare in an app before you travel removes the argument at the end of the
journey, which is where most transport scams happen. Links go to each app's official page —
lookalike apps are themselves a scam.
In Turkey this dispatches licensed taxis rather than private cars.
Coverage: Istanbul mainly.
Why it helps: Fare is agreed in the app before the trip, and the route is recorded — which removes the refused meter, the tampered meter and the fixed 'foreigner price' in one move.