Access to the tower was via a very low corridor which cuts through the stone work of the tower, then it's all the way up on increasingly steep ladders.
If you're the sort of person to go to Biggleswade for a day -- such as to visit a 300 year old folly --maybe take in three very old, and very different types of church while you are there.
A nearly 150 year old church in South London is opening its tower for one day to let the public climb up and see the views from the top.
Slightly hidden away, Westminster Abbey has gained a striking new bronze tower that sits well against its ancient stones.
This pocket park covers the remains of St Mary Aldermanbury, a church that was destroyed during WW2, and rebuilt -- in the USA.
This small pocket park can be found slightly hidden away in a corner of a side street near the Guildhall and owes its current existence to the Great Fire of London.
A small side street near Cannon Street railway station marks the site of a ancient graveyard, and today, a ventilation shaft for the London Underground.
In leafy Clerkenwell is a mighty church that externally looks as polite as a Clerkenwell church should look, but inside is still showing the massive scars left by WW2.
Deep within the heart of King's College on the Strand can be found a most marvelous chapel and a dinky steam train.
There's a very significant church in docklands that allowed people to climb up to see the clock mechanism at the weekend. The scariest church tower climb I have ever done.
Windsor contains a church that despite walking past hundreds of times in my youth, I was never able to go inside -- until today.
Sitting not far from central London can be found the ruins of a large Abbey, which if it were almost anywhere else would be a major tourist attraction.
On site of an ancient church stands its modern successor, and a most curious set of modern stained glass windows.
If you were to walk up the spiral staircase to St Paul Cathedral's famous whispering gallery, you might notice locked doors leading to hidden places, and behind one of them lurks a marvel.
Southwark Cathedral is planning a special night where the interior will be lit by candles, just for photographers.