The trailer for the new Batman film plastered the Liver Building on screens across the world, elevating the local landmark to a world-recognised icon.
But the heroes of the real building are the Liver Birds perched atop each of its two clock towers.
Inside the western tower, closest to the River Mersey, Liver Birds fly visitors through the story of Liverpool as the panoramic film is projected onto the inside walls.
READ MORE: View from the western clocktower of the Liver Building
Your body turns as one chapter of the city's history unfolds into the next, from major trade port to the Second World War to The Beatles to the city of culture.
RLB 360 operations manager Chris Devaney said: "Liverpool's history is so lovely in the way it ties together like that.
"After a period of tragedy, or something disastrous happens in the city, like the Blitz or Hillsborough, it always regenerates and comes back stronger.
"It's amazing to tell that in an easy way that everyone can access."
After more than a century as an office building, the tour of the western clock tower opened in 2019 as part of a plan to open the building up to the public after Corestate Capital bought it in 2016.
Chris, who previously ran and opened bars and restaurants across the country for a national company, jumped at the opportunity to use his history degree in putting the exhibition together.
He told the ECHO: "I love all the little things like going to find little bits of Liverpool's history and find out more information, and just talking to some of the visitors.
"A gentleman who came in, his relative had been at the clock face dinner (a meal laid out on the clock before it was erected).
"We had a lady a couple of years ago - we have an image on the green screen of the Liver Bird in pieces - and she asked us how we have that image because she's got it because it's her husband's relative in that image.
"So being able to then take a picture of her and her son with that, in essence, family photo - she was amazed by that.
"It's quite awe-inspiring in a way because you sometimes forget how important this building is to so many people."
The Liver Building was an iconic feature of Chris's own childhood. He can still see his old bedroom window across the water in Seacombe from its 15th floor.
Now he gets to uncover secrets of its past as he searches for new documents revealing the Liver Building's past.
In early 2020, he went to Leicester to meet a history and clock lover who has schematics of the building's clock faces, which were used when the clock hands were replaced in 2016.
The most surprising find was the cost of the Liver Bird sat on each tower.
Chris said: "On the order page we have, they were £70 each (more than £8,000 in 2021 when accounting for inflation), and when you think of what we have on the roof now and how they stood the test of time, £70 pounds and five weeks to build them, that's crazy.
"You wouldn't believe that could be true."
Some things get cut from the exhibition and the digital clocktower show that Chris would love to include.
The "noble" origins of the Royal Liver Friendly Society was a bit too local for the final cut in the film, but Chris would love to have more personal stories to help bring the building's history to life.
He said: "We've had visitors from every continent in the world, about 80 different countries.
"A lot of the visitors, we do have a large majority who are local, and we have stories of 'My grandma worked here, my grandfather, etc', so it's nice to see that.
"But you also have people who've come over from Australia because their family had links to it.
He added: "Those personal elements are the key for me, because they're the emotive connection to the building, which we all feel."
