Dan and Bex are on a train journey.  And as the train travels through towns and the countryside, it’s got them wondering about how the lines were built across all the different types of landscape.

<p>Dan and Bex are on a train journey.&nbsp; And as the train travels through towns and the countryside, it&rsquo;s got them wondering about how the lines were built across all the different types of landscape.</p>

We're the UK's children's radio station. Listen across the UK on DAB Digital Radio, on mobile and online at funkidslive.com.

<p>We're the UK's children's radio station. Listen across the UK on DAB Digital Radio, on mobile and online at funkidslive.com.</p>

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