SortStack #930 — 2028-12-25

By size · Order from shortest to longest.

1. A concert grand piano 2.7 m

   A grand piano's strings pull with a combined tension of around 20 tonnes, held by a single cast-iron frame.

2. The Great Pyramid of Giza 139 m

   It was the tallest human-made structure on Earth for nearly 3,800 years until medieval cathedrals surpassed it.

3. The cruising altitude of Concorde 18 km

   Concorde flew so high that passengers could see the curvature of the Earth and the dark of space above.

4. The Panama Canal 85 km

   Ships are lifted 26 metres above sea level by locks, then lowered again, crossing a continent without touching the ocean between.

5. New Zealand's South Island (length) 840 km

   It is home to fewer than two million people but more than ten times as many sheep.

6. Chile (length) 4.4K km

   So long and thin it spans 38 degrees of latitude, from the driest desert on Earth to icy glaciers in the south.

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