ALL ANSWERS · LANDMARKS · DAILY No. 37 · OCTOBER 10, 2026
Size It Up Landmarks answer: October 10
The five Landmarks silhouettes for October 10, with the true sizes. If you have not played yet, this page is a spoiler — play these five first, then come back to argue with the numbers.
Day 37 ran from the Florence Cathedral (116 m) to the Great Belt East Bridge Main Span (1.624 km). The widest gap was round 3, Shimotsui-Seto Bridge Main Span against Colosseum, at 5.0×; the closest call was round 4, Great Pyramid of Giza against Sydney Harbour Bridge, only 2.2× apart — the kind of round that separates a 90 from a 60.
SPOILER · TODAY’S FIVE
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ROUND 1
Sydney Opera House (length) vs Tokyo Skytree
Tokyo Skytree · reference · 634 m Sydney Opera House · true length · 183 m 3.5× shorter than the Tokyo Skytree
The Sydney Opera House stretches about 183 m along the harbour; its tallest shell rises 65 m.
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ROUND 2
Eiffel Tower (to the tip) vs Florence Cathedral (to the top of the lantern)
Florence Cathedral · reference · 116 m Eiffel Tower · true height · 330 m 2.8× taller than the Florence Cathedral
The Eiffel Tower is 330 m to the tip of its antenna — it grows about 15 cm in summer heat.
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ROUND 3
Shimotsui-Seto Bridge Main Span (between tower centres · schematic) vs Colosseum (long axis)
Colosseum · reference · 189 m Shimotsui-Seto Bridge Main Span · true length · 940 m 5.0× longer than the Colosseum
Shimotsui-Seto Bridge Main Span: 940 m length (between tower centres · schematic). Horizontal main span between the two tower centre lines; approach roads and side spans excluded. Tower heights, deck depth and cable details are schematic, not measured.
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ROUND 4
Great Pyramid of Giza (base, each side) vs Sydney Harbour Bridge (main arch span)
Sydney Harbour Bridge · reference · 503 m Great Pyramid of Giza · true width · 230.3 m 2.2× shorter than the Sydney Harbour Bridge
Each side of the Great Pyramid's base runs about 230 m; it stood 146.6 m tall when complete and 138.5 m today.
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ROUND 5
Great Belt East Bridge Main Span (between tower centres · schematic) vs Williamsburg Bridge Main Span (between tower centres · schematic)
Williamsburg Bridge Main Span · reference · 487.7 m Great Belt East Bridge Main Span · true length · 1.624 km 3.3× longer than the Williamsburg Bridge Main Span
Great Belt East Bridge Main Span: 1624 m length (between tower centres · schematic). Horizontal main span between the two tower centre lines; approach roads and side spans excluded. Tower heights, deck depth and cable details are schematic, not measured.
Beat these tomorrow
Every round is worth up to 100 points: within 6% of the true size scores 100, half or double scores 45, five times off scores zero. The daily puzzle is the same five for everyone and refreshes at midnight in your time zone; if you want more than five, Size It Up Unlimited draws fresh pairs from the whole library for as long as you like.