Size It Up

ALL ANSWERS · LANDMARKS · DAILY No. 15 · SEPTEMBER 18, 2026

Size It Up Landmarks answer: September 18

The five Landmarks silhouettes for September 18, 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 15 ran from the National Monument (Monas) (132 m) to the Tokyo Skytree (634 m). The widest gap was round 3, One World Trade Center against National Monument (Monas), at 4.1×; the closest call was round 4, The Shard against The Gherkin, only 1.7× apart — the kind of round that separates a 90 from a 60.

  1. ROUND 1

    Tokyo Skytree vs Space Needle

    Space Needle · reference · 184 m
    Tokyo Skytree · true height · 634 m

    3.4× taller than the Space Needle

    Tokyo Skytree stands 634 m tall, the tallest tower in the world.

  2. ROUND 2

    CN Tower vs Statue of Unity (figure only, no pedestal)

    Statue of Unity · reference · 182 m
    CN Tower · true height · 553 m

    3.0× taller than the Statue of Unity

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

  3. ROUND 3

    One World Trade Center (architectural height) vs National Monument (Monas) (monument with flame)

    National Monument (Monas) · reference · 132 m
    One World Trade Center · true height · 541.3 m

    4.1× taller than the National Monument (Monas)

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

  4. ROUND 4

    The Shard (to the tip) vs The Gherkin (building height)

    The Gherkin · reference · 180 m
    The Shard · true height · 309.6 m

    1.7× taller than The Gherkin

    The Shard: 309.6 m height (to the tip). Measured from the base to the architectural tip; includes the permanent spire, where present.

  5. ROUND 5

    Eiffel Tower (to the tip) vs Sydney Opera House (length)

    Sydney Opera House · reference · 183 m
    Eiffel Tower · true height · 330 m

    1.8× taller than the Sydney Opera House

    The Eiffel Tower is 330 m to the tip of its antenna — it grows about 15 cm in summer heat.

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.
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