It's funny that you mention AirBnB, because there were several well-funded german attempts to clone it[1][2]. But now that these failed, the grapes were always sour.

[1]: https://www.eu-startups.com/2011/04/9flats-and-wimdu-the-ger...

[2]: https://techcrunch.com/2011/06/01/airbnb-buys-german-clone-a...