Where does this come from, and can I check it?

The council measures to the architectural top, and antennas do not count. The figure is taken from Council on Tall Buildings and Urban Habitat, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

Is this really a records & extremes fact?

Yes. It sits on the Records & Extremes shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.

What else can I read about it?

The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.

Mondo Knows Facts

Building height is judged by a fixed international rule

The council measures to the architectural top, and antennas do not count The Council on Tall Buildings and Urban Habitat, based in Chicago, rules on which structures count as the tallest. Height is measured from the lowest significant open air pedestrian entrance at level 1 to the architectural top of the building, excluding antennas, flagpoles and signage. That rule is why spires count but broadcast masts do not, and why some towers are classified separately from buildings. It sits in Mondo's records & extremes collection, one of 200 facts that each trace back to the reference below.

Where this comes from

Council on Tall Buildings and Urban Habitat

Facts that can change over time are reviewed and updated. If something here looks wrong, Mondo would rather know than be confidently incorrect.

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Tags: buildings, measurement, architecture

Building height is judged by a fixed international rule: the short answers

Where does this come from, and can I check it?: The council measures to the architectural top, and antennas do not count. The figure is taken from Council on Tall Buildings and Urban Habitat, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a records & extremes fact?: Yes. It sits on the Records & Extremes shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.