SortStack #559 — 2027-12-20

By size · Order from shortest to longest.

1. 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.

2. The Burj Khalifa, Dubai 828 m

   It is so tall that people on the ground floor can watch the sunset, then ride up and watch it set a second time.

3. The Strait of Gibraltar (narrowest width) 14.4 km

   It is so narrow that on a clear day you can see Africa from Europe across the water.

4. Norway (length) 1.8K km

   Stretched out, Norway is so long that its northern tip is closer to the North Pole than to its own southern coast.

5. 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.

6. The Trans-Canada Highway (length) 7.8K km

   One of the world's longest national roads, it stretches across six time zones from the Atlantic to the Pacific.

← All puzzles · Play today’s SortStack