Germany.

So if you're on the $25,000 Pyramid, and the theme is "Things Associated with Germany," you have to figure "Beer" is going to be one of the clues, no? Belgium and the Czech Republic may be rivals for the title, but with Oktoberfest and what-not, German affinity for beer is pretty notable. So, this is clearly one element that the samba school got right. Also, in an illustration of the crazy level of effort put into the floats, the glasses of beer these dancers are standing on actually had bubbles rising through them, and the head on top of the beer would periodically foam up and the dancers would fling clumps of froth into the air. Quite a feat of engineering.