For class Bart must create a scale model of a building out of balsa wood. (I recall doing the same thing, albeit in high school, with the Globe Theatre.) His first choice of Washington Monument is nixed by Homer, who realizes that choice is too easy. They undertake Westminster Abbey, with Homer taking over the balsa and
What I really like is the choice of the other models revealed in the contest, including the CCTV Building in Beijing, China by OMA,
the Brazilian National Congress by Oscar Niemeyer,
and the Temples at Angkor Wat and the Taj Mahal.
As might be expected Bart wins the contest, because his model looks like he didn't have help from his father. As Bart has said in the past, "the ironing is delicious."