"The palace has a tower."
Translation:Paladset har et tårn.
There is a difference in meaning between "et slot" and "et palads".
"Et slot" is used for palaces/castles in Denmark/Western Europe. Here is what comes up if you search for "slotte" on Google Images:
"Et palads" is mostly used for more exotic palaces:
Of course this isn't all black and white, but you get the idea.