ALL ANSWERS · LANDMARKS · DAILY No. 50 · OCTOBER 23, 2026
Size It Up Landmarks answer: October 23
The five Landmarks silhouettes for October 23, 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 50 ran from Chichen Itza (30 m) to the 1915 Canakkale Bridge Main Span (2.023 km). The widest gap was round 3, St Peter’s Basilica against Nelson’s Column, at 2.6×; the closest call was round 5, India Gate against Chichen Itza, only 1.4× apart — the kind of round that separates a 90 from a 60.
SPOILER · TODAY’S FIVE
You have not finished today’s puzzle on this device. The answers below are blurred so you can still play first.
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ROUND 1
Humber Bridge Main Span (between tower centres · schematic) vs One World Trade Center (architectural height)
One World Trade Center · reference · 541.3 m Humber Bridge Main Span · true length · 1.41 km 2.6× longer than One World Trade Center
Humber Bridge Main Span: 1410 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 2
St Paul’s Cathedral (to the top of the cross) vs Malwiya Minaret (including base)
Malwiya Minaret · reference · 52 m St Paul’s Cathedral · true height · 111 m 2.1× taller than the Malwiya Minaret
St Paul’s Cathedral: 111 m height (to the top of the cross). The full vertical silhouette reaches the cross above the dome.
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ROUND 3
St Peter’s Basilica (dome height, rounded) vs Nelson’s Column (column and statue)
Nelson’s Column · reference · 51.6 m St Peter’s Basilica · true height · 136 m 2.6× taller than Nelson’s Column
St Peter’s Basilica: 136 m height (dome height, rounded). Overall height to the top of the dome structure, using the basilica’s rounded published figure.
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ROUND 4
Tsing Ma Bridge Main Span (between tower centres · schematic) vs 1915 Canakkale Bridge Main Span (between tower centres · schematic)
1915 Canakkale Bridge Main Span · reference · 2.023 km Tsing Ma Bridge Main Span · true length · 1.377 km 1.5× shorter than the 1915 Canakkale Bridge Main Span
Tsing Ma Bridge Main Span: 1377 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 5
India Gate (complete arch) vs Chichen Itza (El Castillo, with its temple)
Chichen Itza · reference · 30 m India Gate · true height · 42 m 1.4× taller than Chichen Itza
India Gate: 42 m height (complete arch). Ground to the top of the complete arch; not the height of the opening.
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.