The A40 is closed eastbound between the Westway Roundabout and Marlebone Flyover every weekend until mid-April, while we carry out safety-critical works.

Plan ahead. Allow more time for your journey and check before you travel.

Such TFL Westway Works. To the Mayor of London and TFL, every journey matters.

It's January 30th, 1925 in southwest Kentucky.

Cave explorer Floyd Collins is 55 feet underground.

By the flickering light of a kerosene lantern,

he scrapes rock from the side of a narrow crevasse with a crowbar.

It's painstaking work to give Floyd just centimeters more space.

He's in such tight quarters it would give the average person instant, intense claustrophobia.

But for Floyd, it's just another day at work.

He's been exploring caves around Kentucky since he was six years old. Now 38, he's been working for weeks to expand this tunnel in search of a cave so beautiful and majestic

that tourists would come from all over the world to see it and pay him good money for the privilege.

Floyd scoops up the loose rock he's chipped away and puts it in a burlap sack.

He sets it aside to be taken to the surface,

and with this section of the cave slightly widened, he decides to move deeper in.

Floyd wiggles first down a narrow fissure through the limestone.

A trickle of cold water dribbles down alongside him, dampening his shirt.

At the bottom, Floyd finds a hole with a cool breeze whistling through it. It's a promising lead and a search for a larger cave, but it can wait.

Floyd is tired, besides to call it a day.

Pulling himself back up the limestone fissure, he comes to an especially tight spot. But as he's maneuvering

his limbs to squeeze through, he drops his lantern. The flame goes out, and Floyd is left in total

darkness. Undeterred, Floyd tries squeezing up the narrow space head first. He lifts his right

...