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Like Desert Island Discs, where you can hear castaways like Cher, Gareth Southgate and Nick Cave,

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Listen to your favourite podcasts first on BBC Sounds.

It's a misty monochrome kind of day.

There is a sailing yacht out there, but it's moving incredibly slowly.

Behind me, I've got the old Victorian rail bridge.

Then we've got the 1960s road bridge.

And behind that, the brand new third crossing across the fourth.

We did the north side of the river Forth, traced its origins, its history and we ended up on the new bridge, which we helped build by a way more of course later.

This week we thought we looked at the south side.

So I'm quite excited because the last time we found all kinds of things

we knew nothing about, hopefully this will be the same. Where we're standing at the moment was the

site of the original. It's Queens Ferry. It's where the ferry carried pilgrims from St Andrews

all the way down south. But we're starting right at the far end of the River Forth in Stirling Castle.

It's absolutely steering here in the forecourt of Stirling Castle.

Joe Bennett's one of the guides.

Where are we in the castle just now? Well this is the entrance to the castle today. There's a

mixture of both 18th and 19th century. We're coming under just now the Queen Anne Archway,

which is part of the 18th century out of defences, built between the years of 1708 and 1714.

The gatehouse immediately in front of us is very business-like.

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