Marmara is a region in North Western Turkey. It is Turkey's bridge and connection to Europe. Turkey's largest city, Istanbul is the region's capital.
(European part of the region)
(Asian part of the region)
The following are the two provinces that straddle both continents:
This region gets its name from the sea it surrounds: the Sea of Marmara, a part of Mediterranean Sea, connected to Aegean Sea via Dardanelles, and to Black Sea via Bosporus. The Sea of Marmara is considered as the geographical border between Europe and Asia: northern coasts of it are in Europe, while southern/eastern coasts are in Asia.
This region is Turkey’s most populous and most heavily industrialized part, though you can still find primordial forests hardly seen by human eyes here and there.