A proposed train route spanning 18,755 kilometers (11,654 miles) would traverse 13 countries and take approximately three weeks to complete, potentially becoming the longest continuous train journey in the world. Starting in Lagos, Portugal, and ending in Singapore, the journey would pass through notable cities like Lisbon, Paris, Moscow, Beijing, Vientiane, Bangkok, and Kuala Lumpur. The journey’s environmental implications are also noteworthy, with the train ride emitting significantly less CO2 (0.08 tonnes) compared to flying the same route (1.67 tonnes). The financial aspect is estimated at around $1,350 or €1,255, excluding additional expenses for accommodation and meals.