I feel like in the world's largest continent, home to a majority of its people, you could manage to find enough questions to fill a quiz like this without resorting to questions about a train in Europe. Like, you can argue that Turkiye is mostly a country in Asia and it goes to Turkiye's largest city, or, as you did, that it reaches the "doorstep of Asia"... but I don't think anyone could convincingly argue that its the most deserving question for that spot. Ask about Shanghai's Oriental Pearl Tower, if you want an 'orient' question.
Is it just me, or does "Omsk" sound like a word that would be used in the same context as "whoops"? Like if I drop something, I would say "Omsk!" It just seems like a word that fits the situation.
The tip for Cyprus's highest mountan could also be "...another planet's"