DAILY NO. 27 · VERIFIED MEASUREMENTS
Today's five landmarks Size It Up comparisons with the measured size of each object, its reference and a source you can check. The puzzle is still live, so every answer stays hidden until you tap it. Haven't played yet? Play today's puzzle first.
The October 18, 2026 puzzle ran from the Great Pyramid of Giza at 138.5 m to the Burj Khalifa at 828 m — about 6× apart, drawing on landmarks. The pair furthest apart was round 1: the Burj Khalifa is 1.9× as big as the Empire State Building.
Answer: Burj Khalifa — 828 m. The Burj Khalifa measures 828 m (height), which is 1.9× as big as the reference, the Empire State Building at 443.2 m.
At 828 metres, Burj Khalifa is the tallest completed building.
Common miss: players tend to compress the Burj Khalifa when it sits beside the Empire State Building — big things get squeezed, small familiar things get stretched.
Answer: Washington Monument — 169.3 m. The Washington Monument measures 169.3 m (height), which is 1.5× as big as the reference, a Saturn V rocket at 110.6 m.
The marble changes shade a third of the way up, where construction stopped for over twenty years.
Common miss: players tend to compress the Washington Monument when it sits beside a Saturn V rocket — big things get squeezed, small familiar things get stretched.
Answer: Gateway Arch — 192 m. The Gateway Arch measures 192 m (height), which is 1.1× as big as the reference, the Washington Monument at 169.3 m.
St Louis’s Gateway Arch is as wide as it is tall.
Common miss: players tend to compress the Gateway Arch when it sits beside the Washington Monument — big things get squeezed, small familiar things get stretched.
Answer: Roman Colosseum — 189 m. The Roman Colosseum measures 189 m (length / span), which is about 1.4× smaller than the reference, the RMS Titanic at 269 m.
The ancient amphitheatre is roughly 189 metres along its longest axis.
Common miss: players tend to inflate the Roman Colosseum when it sits beside the RMS Titanic — big things get squeezed, small familiar things get stretched.
Answer: Great Pyramid of Giza — 138.5 m. The Great Pyramid of Giza measures 138.5 m (height), which is 1.5× as big as the reference, the Statue of Liberty at 93 m.
Erosion has reduced the pyramid to about 138.5 metres today.
Common miss: players tend to compress the Great Pyramid of Giza when it sits beside the Statue of Liberty — big things get squeezed, small familiar things get stretched.
Sizes are measured along the axis named in each round and link to their published source. Explore the full library by category, or read how scoring works.