SortStack #3408 — 2035-10-08

By size · Order from shortest to longest.

1. A new wooden pencil 18 cm

   A single pencil can draw a line roughly 56 kilometres long before the graphite runs out.

2. A yellow school bus 13.7 m

   That specific shade, 'school bus yellow', was chosen in 1939 because it stays visible in dim dawn light.

3. 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.

4. The Suez Canal 193 km

   It has no locks because the Mediterranean and Red Sea sit at almost exactly the same level.

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.

← All puzzles · Play today’s SortStack