From London which surrounding countries can you travel to by train?

Answer 1

From London there are direct trains to Belgium (Brussels) and France (Lille, Paris and a few trains to other destinations).

If you change trains in Brussels or Paris you can travel to Spain, Italy, Switzerland, Germany, Luxembourg and The Netherlands.

With further changes you can travel to virtually any country in mainland Europe.

Answer 2

It depends which country you start from.

In North America you can get from Canada to the USA and vice-versa. There are rail lines between Mexico and the USA, but no passenger services.

In Europe, all the national rail networks interconnect. You can get from nearly every European country to nearly every other one. And they connect with Russian Railways, which is connected to Chinese railways. So you can get by passenger train from most places in Europe to or from China. It is possible to go by rail from London to Peking!

The rail networks in southern Africa are interconnected, but in central and northern Africa there are very few international rail connections.

South America has no internationall passenger rail connections.