Liam (32 years old): “I am very interested in geography. I want to visit a city near mountains. I want to stand in two parts of the world at the same time – Europe and Asia. I like hiking and taking photos of nature. I don't need a sea or ocean. I prefer forests and hills.”

Текст грамматически правильный, ошибок в орфографии и пунктуации нет. Выражение stand in two parts of the world at the same time понятно; более естественный вариант — stand in two parts of the world at once («стоять сразу в двух частях света»).