I had a similar discussion once regarding the whole planes vs. trains thing and in the process blew their minds, by showing a Google Maps screenshot of driving distance Seattle - Dallas (31h) and how that would look in Europe: Lisbon (Portugal) - Warsaw (Poland) - crossing 6 countries in total.
I had a similar discussion once regarding the whole planes vs. trains thing and in the process blew their minds, by showing a Google Maps screenshot of driving distance Seattle - Dallas (31h) and how that would look in Europe: Lisbon (Portugal) - Warsaw (Poland) - crossing 6 countries in total.