In Copenhagen you can visit The Round Tower. It used to be an astronomical observatory until light pollution and the vibrations from increased traffic in the streets made it useless for its original purpose.
Today it’s mostly famous for what it looks like on the inside.
It has an equestrian staircase though it’s so smooth it’s really just a gentle slope more than a staircase. It was build like that so our lazy bum king could ride his horse all the way to the top (king not in photo)
And naturally people have also driven cars up the tower
And held a bike race
For a while it was just sort of abandoned by the authorities and became a sloping marketplace
But today it has been restored and become a tourist spot as well as a popular destination for school trips. And yes, you can still watch the cosmos at the top.
