Haunting images show the wreckage left inside from the fire that ravaged Notre Dame cathedral 

The fire that tore through Notre Dame one month ago and nearly took down the famed cathedral in the heart of Paris is still under investigation, but recovery efforts are well underway.

Those efforts will be on display Monday night when World News Tonight goes inside the church, where David Muir was able to gain access as the first American anchor to report from the site of the blaze.

Images of the devastation obtained by DailyMail.com show Muir and the man hired to oversee the resurrection of the church, General Jean-Louis Georgelin, making their way through the charred remains.

The men survey the sea of destroyed pews, the collapsed altar and feel rain pour in from what would have been the ceiling, but there are also some incredible stories of survival.

These include the golden cross, a statue of the Virgin Mother and the church’s organ, which were all spared by the fire

See more on Monday when Muir’s report airs on Good Morning America and World News Tonight.

This is the toppled spire inside the Notre Dame, seen for the first time since it fell in a fire last month, in a first-look inside the cathedral 

ABC'S David Muir is pictured interviewing General Jean-Louis Georgelin inside the charred Notre Dame. He is the first American anchor to have gained access to the cathedral since a fire tore through it last month. Georgelin has been tasked with overseeing restoration efforts

ABC’S David Muir is pictured interviewing General Jean-Louis Georgelin inside the charred Notre Dame. He is the first American anchor to have gained access to the cathedral since a fire tore through it last month. Georgelin has been tasked with overseeing restoration efforts

General Georgelin walks Muir through the destroyed site. Muir's report will be shown on Good Morning America and World News Tonight on Monday

General Georgelin walks Muir through the destroyed site. Muir’s report will be shown on Good Morning America and World News Tonight on Monday

The two men were joined by others working to restore the site and clear out the damage. The are shown surveying the damage to the roof of the cathedral

The two men were joined by others working to restore the site and clear out the damage. The are shown surveying the damage to the roof of the cathedral 

The organ survived but each of its thousands of pipes is being tested for lead. There were fears the instrument did not make it through the blaze in tact

The organ survived but each of its thousands of pipes is being tested for lead. There were fears the instrument did not make it through the blaze in tact 

Rain seeps through a hole in the roof of the cathedral. The roof was the worst damaged part of the structure

Rain seeps through a hole in the roof of the cathedral. The roof was the worst damaged part of the structure 

The cathedral's famed stained class windows survived and is shown, from the inside, this week

The cathedral’s famed stained class windows survived and is shown, from the inside, this week 

The men also take a closer look at some of the relics that somehow managed to survive the blaze that sent the church’s 19th century spire crashing into the nave.

It pierced through the structure, but and caused damages that are still unknown, but failed to take down Notre Dame’s famed golden cross.

The cross still sits in its place behind the altar and choir at the church, which were both destroyed when a fire ripped through the building sometime during mass on April 15, which is part of Holy Week in the Catholic faith.

‘The entire world saw the cross of god shining despite the the fire,’ Georgelin told Muir. 

 The French general also gave Muir an up close look at the statue of the Virgin Mary who survived intact and untouched despite the flames roaring around her and her young son.

It was brought down from its perch however to take a closer look, meaning that for the first time the statue can bee viewed at eye level by a select few.

‘It’s a privilege,’ said Georgelin of getting to be so near the historic artwork.

And of course there is the organ.

Mercifully, some of the cathedral's most famous relics, including its golden cross, remain in tact. The cause of the fire is still under investigation

Mercifully, some of the cathedral’s most famous relics, including its golden cross, remain in tact. The cause of the fire is still under investigation 

Many of the pews remain in tact but there is a large collection of debris near the altar and water logs the aisle towards it

Many of the pews remain in tact but there is a large collection of debris near the altar and water logs the aisle towards it

It was not damaged by fire, but the water and lead have not helped the instruments whose music has been a daily constant prior to last month’s blaze.

‘The organ hasn’t been touched by the flames but there is water, there is lead,’ said Georgelin.

‘We probably will have to remove it to repair it … Sometime we will hear it again, the organ of Notre Dame de Paris.’ 

The cathedral’s famous rose widows also managed to avoid damage from the fire, which left the 42-feet panes of stained glass unscathed last month

‘It was a race against time because during the night at some time we were considering that the entire building could collapse, especially when the fire in the [hit] north tower,’ said Georgelin of the day of the blaze.

So much iron was destroyed in fact, that the workers on the scene must have their blood tested while working on the restoration.

Georgelin is certain however that there will be happy ending.

”Nothing is impossible to a French general,’ said Georgelin, who predicts Notre Dame will reopen in five years. ‘When there’s a will, there’s a way.  

This classic statue of the Virgin Mary with her young son, which is now on eye level for workers to see, also survived the blaze. It is the first time it has been brought down to ground level for hundreds of years

This classic statue of the Virgin Mary with her young son, which is now on eye level for workers to see, also survived the blaze. It is the first time it has been brought down to ground level for hundreds of years

The survival of some of the artifacts inside the church is miraculous given the speed at which it spread as the world watched in horror last month

The survival of some of the artifacts inside the church is miraculous given the speed at which it spread as the world watched in horror last month

Muir and Georgelin's walk-through the cathedral is the first that has been filmed for American television since the fire on April 15. Georgelin promised that the cathedral would reopen in five years. 'Nothing is impossible to a French general,' he said

Muir and Georgelin’s walk-through the cathedral is the first that has been filmed for American television since the fire on April 15. Georgelin promised that the cathedral would reopen in five years. ‘Nothing is impossible to a French general,’ he said

The fire swept across the top of the cathedral while it was under renovations, collapsing its spire and threatening one of the world’s greatest architectural treasures.

The 12th-century church is home to relics, stained glass and other incalculable works of art and is one of the world’s leading tourist attractions.

Although it is still be ing investigated, the fire in being treated as an accident, with prosecutors ruling out arson and possible terror-related motives soon after the catastrophe. .

The dramatic images of the flaming cathedral were broadcast around the world while tourists stood at scene aghast.

Miraculously, no one was killed.

There was one firefighter who suffered an injury during the hours he and 400 others battled the flames.

The blaze started at 6:50 p.m. after the cathedral had closed to the public, and spread to one of its landmark rectangular towers.

Nearby buildings were evacuated as fears mounted that the structure could collapse. 

Read more at DailyMail.co.uk