Zagreb

Zagreb is the capital and the largest city of Croatia.

History
Zagreb was the final destination of a train chosen by Cybertek to deliver a package to Ian Quinn.

Having discovered the purchase, Coulson's Team boarded the train in an undercover mission in order to follow the package and trap Quinn.

While on the train, Skye, as part of her cover, asked the italian Conductor for a restaurant in Zagreb, distracting him long enough to steal the keys and open the door of the luggage coach.

Trivia

 * In the comics, Zagreb is the birthplace of Emil Blonsky.