ALL ANSWERS · LANDMARKS · DAILY No. 23 · SEPTEMBER 26, 2026

Size It Up Landmarks answer: September 26

The five Landmarks silhouettes for September 26, 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 23 ran from the Parthenon (69.5 m) to the Great Belt East Bridge Main Span (1.624 km). The widest gap was round 3, Great Belt East Bridge Main Span against One World Trade Center, at 3.0×; the closest call was round 5, Ben Franklin Bridge Main Span against Tokyo Tower, only 1.6× apart — the kind of round that separates a 90 from a 60.

  1. ROUND 1

    Colosseum (long axis) vs CN Tower

    CN Tower · reference · 553 m
    Colosseum · true length · 189 m

    2.9× shorter than the CN Tower

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

  2. ROUND 2

    Gateway Arch vs Parthenon (length)

    Parthenon · reference · 69.5 m
    Gateway Arch · true height · 192 m

    2.8× taller than the Parthenon

    St. Louis's Gateway Arch is 192 m tall and exactly as wide as it is tall.

  3. ROUND 3

    Great Belt East Bridge Main Span (between tower centres · schematic) vs One World Trade Center (architectural height)

    One World Trade Center · reference · 541.3 m
    Great Belt East Bridge Main Span · true length · 1.624 km

    3.0× longer than One World Trade Center

    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.

  4. ROUND 4

    Willis Tower (Sears Tower, to the tip) vs Space Needle

    Space Needle · reference · 184 m
    Willis Tower · true height · 527 m

    2.9× taller than the Space Needle

    Chicago's Willis Tower is 527 m to the tip of its antennas; the roof is at 442 m.

  5. ROUND 5

    Ben Franklin Bridge Main Span (between tower centres · schematic) vs Tokyo Tower

    Tokyo Tower · reference · 333 m
    Ben Franklin Bridge Main Span · true length · 533.4 m

    1.6× longer than the Tokyo Tower

    Ben Franklin Bridge Main Span: 533.4 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.

Choose a category

Now: Mixed · Daily

Browse all categories

Suggest a category

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

SIZE IT UP

Get Sizivo.

iPhone & iPad

Free
Download on the App Store

iOS / iPadOS
16.4 or later

Android

Free
Get it on Google Play

Android
7.0 or later