SortStack #601 — 2028-01-31

By size · Order from shortest to longest.

1. A house dust mite 0.3 mm

   Millions live in the average mattress, feasting on flakes of dead skin, yet they are too small for the naked eye to see.

2. A Brachiosaurus (length) 22 m

   It held its neck high like a giraffe, possibly needing a heart of enormous power to pump blood up to its brain.

3. The Verrazzano-Narrows Bridge (main span) 1.3 km

   Its towers are slightly farther apart at the top than the bottom because they must follow Earth's curvature.

4. The Kiel Canal, Germany 98 km

   The world's busiest artificial waterway, it lets ships skip the long, stormy voyage around Denmark.

5. Lake Baikal (length) 636 km

   The world's deepest lake holds about a fifth of all the planet's unfrozen fresh water.

6. The Great Wall of China (total length) 21.2K km

   Contrary to the popular myth, it cannot actually be seen from the Moon with the naked eye.

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