"I would like to travel ..." is a more polite/formal way of saying "I want to travel ..."
Its function is to show a desire to do something in the future.
The suggestion, "I like travelling ...", by Deanna, implies that you have already travelled to a place in that past, and that you continue to like doing it now. E.g. "I like travelling in summer / on Tuesdays / at the weekend."