SortStack #685 — 2028-04-24

By size · Order from shortest to longest.

1. An acoustic guitar 99 cm

   The guitar's hollow body acts as an amplifier, resonating the strings' vibration into the air around it.

2. The Empire State Building 443 m

   It was built in just 410 days during the Great Depression, rising about a floor a day at peak speed.

3. Veryovkina Cave (depth) 2.2 km

   The deepest known cave on Earth, explorers need weeks underground to reach its bottom and climb back out.

4. Mount Kilimanjaro, Tanzania 5.9 km

   You can walk from tropical jungle to arctic glaciers on its slopes, passing through five climate zones in days.

5. The Grand Canyon (rim-to-rim width) 29 km

   It is so wide that the cooler north rim and warmer south rim have noticeably different plants and wildlife.

6. The River Rhine (length) 1.2K km

   It has been a vital trade highway since Roman times, still carrying more cargo than any other river in Europe.

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