Near Berlin means the state of Brandenburg, which is famous for failed mega projects:

- Airport BER (still not open)

- Cargolifter airship factory (now used as a waterpark)

- Lausitzring (was supposed to host the F1, now hugely unprofitable)

- Semiconductor factory in Frankfurt/Oder (abandoned, only the building got finished)

I am not aware of one single project that materialized as planned. The odds are against Elon on this one...