HistoryGuesser Daily · August 14, 2026 · 1000 – 1919
From the stone serpent of the Great Wall to a steel bridge spanning the San Francisco fog, today's challenge traces how ambitious builders and unforgiving environments have shaped our world.
The scenes are shown below — tap a card to reveal its place and year.
Round 1 · 1540
Ming Construction of the Great Wall
Badaling, China
To defend against Mongol raids, the Ming Dynasty transformed earlier earthworks into an impregnable stone and brick barrier, featuring sophisticated watchtowers and troop barracks along the steep ridges.
Round 2 · 1000
Completion of El Castillo at Chichen Itza
Chichen Itza, Mexico
This Mesoamerican step-pyramid was dedicated to the feathered serpent god Kukulcan, designed so that the spring and autumn equinox sun casts a shadow mimicking a snake slithering down its stairs.
Round 3 · 1648
Construction of the Potala Palace
Lhasa, Tibet
Commissioned by the 5th Dalai Lama, the massive fortress took over fifty years to build on the Red Hill, serving as the winter residence of the Dalai Lamas and the center of Tibetan government.
Round 4 · 1915
Shackleton's Endurance Trapped in Pack Ice
Weddell Sea, Antarctica
Sir Ernest Shackleton's Imperial Trans-Antarctic Expedition was halted when their ship became immobilized in the Weddell Sea, forcing the crew to camp on the drifting ice for months before it sank.
Round 5 · 1919
The Great Boston Molasses Flood
Boston, Massachusetts
A massive commercial storage tank burst, sending a 25-foot wave of dense, sticky molasses tearing through the North End at 35 miles per hour, destroying buildings and crushing the elevated railway.
