Rising fastball

[SAump]

My favorite episode of MYTH BUSTERS posed the following question.

Which travels higher and/or further, a football filled with helium or a football filled with AIR? This question was raised by BUM Phillips who coached the Houston Oilers back in the 1970's. He noticed that the Oakland Raiders punter Ray Guy (??) was punting the ball so high and so far that his punt returner was forced to call for a FAIR catch everytime. He asked the NFL to check what was in those footballs and the statistical term "Hang Time" was later introduced. It also explained how the spin on the football, or SPIRAL, allows the football to travel further, overcoming constant gravitational effects.

What weighs more, the famous Eiffel Tower in Paris, France or a column of AIR surrounding the Eiffel Tower in Paris, France?