You're listening to an I-Heart podcast.

Are you prepared to venture to the darkest, most haunted locations in the world?

It was all solid, black, like shadow.

As your host, Amy Bruny, I'm ready to take you on a spine-tingling journey through the unknown.

There was a man sitting in the corner.

She saw him and then it was gone.

Listen to new episodes of Haunted Road on the IHeart Radio app, Apple Podcasts,

or wherever you listen to your favorite shows.

Welcome to Aaron Menke's Cabinet of Curiosity's, A production of IHeartRadio and Grim and Mild.

Our world is full of the unexplainable.

And if history is an open book, all of these amazing tales are right there on display, just waiting for us to explore.

Welcome to the Cabinet of Curiosities. The world is full of danger. That much is undeniable. Some human beings are actually drawn to risk,

skydiving, free climbing, chasing tornadoes. The list goes on and on. There's an excitement to putting

yourself at risk, an adrenaline jolt that reminds someone of what it's like

to be alive. And then, of course, there are people who feel the opposite impulse to minimize risk

at every opportunity, to whom the simple act of leaving the house is a decision fraught with considerations.

What either category of person might not understand, though, is that we have tools to measure

danger that are extremely specific.

Just like how we measure earthquake intensity or measure radioactivity, there are also tools

that have been developed specifically to measure general peril.

One such tool is known as the Duckworth Scale.

Frank Duckworth began his career as a scientist in the nuclear power industry.

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