Underground in London, England.
The oldest metro system is London Underground
No. Many people say that San Marino is the oldest country, but it is not the oldest. The oldest countries in the world are in the Middle East.
China and Egypt is the oldest country in the world, they have about 2,000 year of history,.
Its the oldest HISTORY in the world, its about 8000 years or more.
San Marino.
The red dragon of whales is the oldest flag in the world.
China
Bulgaria
no
malta
Iceland, Alþingi
Many consider San Marino, which is completely surrounded by Italy, to be the world's oldest country. It was founded in the year 301 CE, and its constitution is the world's oldest.