ALL ANSWERS · LANDMARKS · DAILY No. 43 · OCTOBER 16, 2026

Size It Up Landmarks answer: October 16

The five Landmarks silhouettes for October 16, 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 43 ran from the Angel of the North (20 m) to the Humber Bridge Main Span (1.41 km). The widest gap was round 1, Sydney Opera House against India Gate, at 4.4×; the closest call was round 3, Angel of the North against Al-Khazneh, only 2.0× apart — the kind of round that separates a 90 from a 60.

  1. ROUND 1

    Sydney Opera House (length) vs India Gate (complete arch)

    India Gate · reference · 42 m
    Sydney Opera House · true length · 183 m

    4.4× longer than the India Gate

    The Sydney Opera House stretches about 183 m along the harbour; its tallest shell rises 65 m.

  2. ROUND 2

    Colosseum (long axis) vs One World Trade Center (architectural height)

    One World Trade Center · reference · 541.3 m
    Colosseum · true length · 189 m

    2.9× shorter than One World Trade Center

    The Colosseum's oval is about 189 m long and 156 m wide, ringed by walls 48 m high.

  3. ROUND 3

    Angel of the North (feet to head) vs Al-Khazneh (the Treasury at Petra)

    Al-Khazneh · reference · 39.5 m
    Angel of the North · true height · 20 m

    2.0× shorter than Al-Khazneh

    Angel of the North: 20 m height (feet to head). Height is 20 metres. The 54-metre wingspan is a different measurement.

  4. ROUND 4

    St Paul’s Cathedral (to the top of the cross) vs Great Pyramid of Giza (base, each side)

    Great Pyramid of Giza · reference · 230.3 m
    St Paul’s Cathedral · true height · 111 m

    2.1× shorter than the Great Pyramid of Giza

    St Paul’s Cathedral: 111 m height (to the top of the cross). The full vertical silhouette reaches the cross above the dome.

  5. ROUND 5

    Humber Bridge Main Span (between tower centres · schematic) vs Petronas Tower 1 (one tower, architectural height)

    Petronas Tower 1 · reference · 452 m
    Humber Bridge Main Span · true length · 1.41 km

    3.1× longer than Petronas Tower 1

    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.

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.

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