SortStack #62 — 2026-08-10

By size · Order from shortest to longest.

1. A black peppercorn 4 mm

   Pepper was once so valuable it was used as currency and accepted to pay rent and taxes in medieval Europe.

2. Merdeka 118, Kuala Lumpur 679 m

   The second-tallest building on Earth, its faceted glass facade echoes patterns from traditional Malaysian crafts.

3. Aconcagua, Argentina 7 km

   The highest peak outside Asia, it can be hiked to the summit without ropes, yet thin air still kills climbers.

4. Mount Everest 8.8 km

   Its summit is made of marine limestone, lifted from an ancient seabed, so the top of the world was once underwater.

5. The Channel Tunnel 50.5 km

   Trains run through three parallel tubes beneath the seabed, with a smaller service tunnel between them for safety.

6. The Great Barrier Reef (length) 2.3K km

   It is the largest living structure on Earth, built by tiny coral animals and visible from space.

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