Photo by Edward Pevos | MLive

DETROIT - You could walk right by this place and never know it's there. Well, not anymore because we're taking you inside this hidden retro 1950s diner.

From the '50s jukebox to the vintage bar stools and classic green, red and orange colors, you'll be transported back in time.

Here's a look inside this diner, along with a glimpse at some of the food on the menu.

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Photo by Edward Pevos | MLive

Karl's is located on the second floor of The Siren Hotel at 1509 Broadway St. in downtown Detroit.

This is the old 1926 Wurlitzer Building. It was a showroom for the Wurlitzer company, which was famous for its organs, jukeboxes and musical instruments.

The building closed in 1982. ASH NYC restored it as the Siren Hotel in 2018.

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Photo by Edward Pevos | MLive

Karl's is co-owned by Detroit Chef Kate Williams and ASH NYC.

The only way to get there is to walk through the lobby, then down a winding hallway and finally up two flights of stairs.

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Photo by Edward Pevos | MLive

Chef Williams, whose first restaurant is Detroit's Lady of the House, says this diner was inspired by her great-great grandparents and the bakery they once owned on Detroit's East Side.

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Photo by Edward Pevos | MLive

"My great great grandfather, Anton Karl, had a bakery which closed right before the Great Depression. Karl’s is my interpretation of what the bakery would be today if it had been passed through several generations of our family while also evolving with the city of Detroit," said Williams.

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Photo by Edward Pevos | MLive

The retro decor features vinyl banquettes, laminate bar tops, patterned tile flooring and chrome & neon accents.

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Photo by Edward Pevos | MLive

The wood flooring is original from 1926. The linoleum walls are trimmed with chromed metal and wooden pegs.

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Photo by Christian Harder via M18 PR

This restored 1957 Wurlitzer jukebox plays music for just 25 cents.

So, why the second floor of the Wurlitzer building for Karl's?

"I met Ari from ASH NYC and was so impressed with his dedication to restore the Wurlitzer Building," said Williams. "They believe in working with people and places that have a real story, a history and a soul. Our philosophies on building a business aligned really well and that was the only way I was going to open in that location."

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Photo by Edward Pevos | MLive

The restaurant offers breakfast, lunch and dinner items with many classic items you'd expect from an old diner.

This place also serves a selection of boilermakers, cocktails, wine and beer.

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Photo by Edward Pevos | MLive

Milkshakes are $6 each and come with chocolate, vanilla or strawberry ice cream from Guernsey Farms Dairy.

Irish shakes with Jameson Whiskey are $13.

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Photo by Edward Pevos | MLive

We tried the pancakes for the table. For $15, you get a giant stack of four buttery flapjacks which can easily feed four people with a couple of sides.

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Photo by Edward Pevos | MLive

Quiche of the day - $10.

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Photo by Christian Harder via M18 PR

Matty's ham sandwich - $12.

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Photo by Christian Harder via M18 PR

Wedge salad - $13.

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Photo by Christian Harder via M18 PR

Spaghetti & Meatballs - $19.

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Photo by Edward Pevos | MLive

Soup of the day - $9.

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Photo by Christian Harder via M18 PR

German breakfast roll (Potato roll dusted with poppy seeds and butter, filled with chives and cream cheese)- $8

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Photo by Christian Harder via M18 PR

Slice of pie - $8.

There's also cheesecake, danishes, cookies, cake, donuts and cinnamon rolls ranging from $4 - $8.

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Photo by Edward Pevos | MLive

Karl's hours of operation:

Open 7 days a week

Sunday - Thursday: 10 a.m. - 1 a.m.

Friday - Saturday: 10 a.m. - 2 a.m.

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