If you've spent any time reading about cars,

you've probably heard the term.

What is it?

It's a merciless 13-mile track

with terrifying twists, turns, and dips,

and arguably the most dangerous race course in the world.

But it's become a sort of holy destination for drivers,

professional and amateur, who make the pilgrimage

to the small town of Nürburg, Germany.

Since its construction in 1927,

the ring has tragically claimed the lives

of just under 70 motorsport heroes.

Legendary Formula One driver Jackie Stewart

famously crowned the track the "Green Hell,"

a nickname it holds to this day.

But just what makes the Nürburgring so brutal?

The Nürburgring is actually composed

of two different courses,

but it's the site's northern loop, or Nordschleife,

that most associate with the track.

As the world's longest racetrack,

the Nordschleife remains the ultimate test of skill

amongst professional drivers competing in extreme races,

like the 24 Hours of Nürburgring endurance race.

A closer look at the track reveals three things

that make it such a challenge,

even for the most skilled drivers:

the steep elevation changes,

blind corners, and the lack of runoff areas.

Let's start with the elevation changes.

For an idea of just how severe the Nürburgring's are,

the total difference in altitude

from the track's highest point

to its lowest is a jaw-dropping 985 feet.

And it doesn't occur gradually, either.

The shifts in elevation are abrupt and spontaneous,

providing plenty of challenges

for those who don't know the track thoroughly,

and even those who do.

One of the best examples of this happens fairly early

in the track, at a section known as Fox Hole.

This section features five sweeping corners

that can be taken at full speed!

But it's at the last corner,

when the track goes into a steep downhill descent

then immediately elevates,

that you feel more g-forces than you've ever felt.

To better understand what driving through it is like,

we caught up with someone who circles the Ring

over 1,000 times every year.

Misha Charoudin is a race-car driver,

course instructor, and YouTuber

who knows every inch of the track like the back of his hand.

He's even managed to guide a driver around it

while completely blindfolded!

Misha Charoudin: You have Fox Hole.

It's a very, very downhill descent followed

by instant climb.

And what a lot of people do, they think,

like, "Oh, let me see what the top speed of my car is

because I'm going downhill now."

And then they brake at the lowest point.

The issue here is the weight transfer.

When you brake at the complete bottom,

you have the weight transfer ready

because the car will change direction

from going downhill to uphill,

and when you apply the brakes on that,

you will most likely end up in the barrier.

Narrator: But it's near the Ring's end

that drivers face one of the most daunting

sections of racetrack in the world

when it comes to elevation change.

Located 10.5 miles into the track

is a section called Pflanzgarten.

Known for its number of career-ending accidents,

there is zero room for error

on this series of jumps and turns

where drivers will find it nearly impossible

not to go airborne.

Misha: So, you actually, literally, your car will jump

three times over, I would say, a period of one minute.

Your car will be airborne one time straight

before the braking zone,

one time you will go a bit sideways maybe even

in the air as well, and one time you will be going

over 120 mph over a slight bump while changing direction.

So, when you have a mistake there it will usually end up

in a very, very...let's say track closure.

People will have to close the track,

how bad of an accident it's going to be.

Narrator: But it isn't simply jumps and drops

that cause so many accidents on the Nürburgring.

On a 13-mile track made up

of around 170 different tight corners,

about 90% of them are blind.

The Ring's infamous turn they call Kallenhard,

about five miles into the track, is the perfect example

of just how blind these corners can be.

Misha: It's difficult because it's very blind

and it gets very tight.

It has a very, very, very late apex,

and people just don't expect that.

Because they think, well, the turn should be over now.

No, it gets tighter, tighter, tighter, and it's very blind.

And you see a lot of accidents happen there.

So you have to stay very slow, very much on the outside,

slow feet, fast hands, and get it right.

And this is something that people really mess up.

So this is, I would say in terms of the blind corner,

Kallenhard is definitely one of the most challenging ones.

Narrator: It's also the lack of sufficient runoff areas

that separates the Nürburgring from the rest

of the world's professional racetracks.

While most courses feature plenty of zones for

out-of-control vehicles to safely depart from the track,

less than a handful of corners at the Nürburgring

have what could even be considered runoff areas.

For the majority of the course,

drivers will find that there is less than a meter

separating the track from the barriers.

This means that even the slightest mistakes can result

in cars smashing into the walls.

But as intimidating a track like the Green Hell can be,

Misha has a few simple words of advice

for those everyday drivers looking

to tackle the Ring for the very first time.

Misha: I always say, you cannot impress here anyone

after 93 years of history,

but you can make everybody laugh.

So make sure to be the person that does not make us laugh

after ending up on YouTube for some bad crash video.