In 1989, Germany was divided by much more than a concrete wall: West and East were separated by stark economic differences.
A vote in Berlin on September 24 will decide the fate of the old Tegel airport, located six miles outside the city.
The Berlin site of Monday's attack has reopened.
Investor thinks companies will move for access to the European single market.
A new law is banning many short-term rentals in Berlin, which means tourists may have to pay more.