PINT of Stella. mate!
Many, many Scotches
Oh damn, just realised I didn’t specify atomic weight v density. I think you might be right on Uranium as far as atomic weight goes, but Osmium is the densest.
Your turn.
It's not heaviest as far as atomic weight goes think there's all your mad ones like Einsteinium and whatnot but I'll take the points!
What and where is the Hallgrímskirkja?
*There's a clue in the name