Size It Up

ALL ANSWERS · LANDMARKS · DAILY No. 13 · SEPTEMBER 16, 2026

Size It Up Landmarks answer: September 16

The five Landmarks silhouettes for September 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 13 ran from Nelson’s Column (51.6 m) to the CN Tower (553 m). The widest gap was round 5, CN Tower against The Gherkin, at 3.1×; the closest call was round 4, One World Trade Center against Tokyo Tower, only 1.6× apart — the kind of round that separates a 90 from a 60.

  1. ROUND 1

    Empire State Building (to the tip) vs Sydney Opera House (length)

    Sydney Opera House · reference · 183 m
    Empire State Building · true height · 443 m

    2.4× taller than the Sydney Opera House

    The Empire State Building is 443 m to the tip of its antenna; the roof sits at 381 m.

  2. ROUND 2

    Leaning Tower of Pisa (high side) vs Ushiku Daibutsu (including 20 m base)

    Ushiku Daibutsu · reference · 120 m
    Leaning Tower of Pisa · true height · 57 m

    2.1× shorter than the Ushiku Daibutsu

    The Leaning Tower is 57 m on its high side and leans about 4 degrees.

  3. ROUND 3

    Wembley Stadium Arch (arch height) vs Nelson’s Column (column and statue)

    Nelson’s Column · reference · 51.6 m
    Wembley Stadium Arch · true height · 133 m

    2.6× taller than Nelson’s Column

    Wembley Stadium Arch: 133 m height (arch height). The stadium’s published 133-metre arch height, not the roof height or arch span.

  4. ROUND 4

    One World Trade Center (architectural height) vs Tokyo Tower

    Tokyo Tower · reference · 333 m
    One World Trade Center · true height · 541.3 m

    1.6× taller than the Tokyo Tower

    One World Trade Center: 541.3 m height (architectural height). Measured from the base to the architectural tip; includes the permanent spire, where present.

  5. ROUND 5

    CN Tower vs The Gherkin (building height)

    The Gherkin · reference · 180 m
    CN Tower · true height · 553 m

    3.1× taller than The Gherkin

    Toronto's CN Tower is 553 m — the tallest free-standing structure in the world for 32 years.

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.

Play today’s fivePlay unlimited
Choose a categoryPLAYING DAILY
MixedAnimals, planets and everyday things. AnimalsLength, height or wingspan — every round names the axis. GeographyEast–west or north–south span, never area. Pop CultureCheck the version. Compare the measured dimension. VehiclesLength end to end, or height for the ones that stand upright. DinosaursCompare estimated body length, from snout to tail tip. SpaceCompare body diameter. Rings and orbital distances are excluded. Everyday ObjectsLength, height or width — every round names the axis. InsectsBody length or wingspan — read the named measurement. LandmarksRead the named height, length or main span — including its endpoints. Food & DrinkRead the selected size and axis — length, diameter or container height.
Browse all categories →

Suggest a category

No account or email needed. Suggestions help us choose what to build.