How big is the Leaning Tower of Pisa compared to the Arc de Triomphe?
The Leaning Tower of Pisa measures 56.7 m (186 ft) from the ground up, and the Arc de Triomphe measures 50 m (164 ft) from the ground up. That puts the Leaning Tower of Pisa at 1.13 times the height of the Arc de Triomphe: 6.7 m (22 ft) of difference, 13%. Put the other way round, the Arc de Triomphe covers 88% of the Leaning Tower of Pisa on the axis both are judged on. The Leaning Tower of Pisa and the Arc de Triomphe are both written in tens of metres, and the 13% between them is the whole of the difference.
| Object | Real size | Axis measured | What the figure covers |
|---|---|---|---|
| Leaning Tower of Pisa | 56.7 m 186 ft |
Height | Ground to highest point |
| Arc de Triomphe | 50 m 164 ft |
Height | Ground to highest point |
Both figures, Leaning Tower of Pisa and Arc de Triomphe, come from the Size It Up measurement set, one real-world size and one measured axis per object, last checked in September 2026; outline provenance is listed on the sources page.
Why this one is hard to judge by eye
The Arc de Triomphe is drawn about 3.01 times as wide as the Leaning Tower of Pisa above while measuring 88% as much on the axis that counts. That is the trade the eye gets wrong: it reads width as size. The Leaning Tower of Pisa sits in the range with no handy yardstick: too big to hold against anything you have carried, too small to need a horizon, so it and the Arc de Triomphe end up filed under the same vague heading of very large. A gap of 13% is invisible without a shared baseline: on the ground line above, the Arc de Triomphe stops 6.7 m (22 ft) short of the Leaning Tower of Pisa.
What each figure covers
Leaning Tower of Pisa. The tower is measured on its high side. The low side is a couple of metres shorter, so the building genuinely has two heights and both of them are correct.
Arc de Triomphe. Measured to the top of the arch. It was built to be walked under, and the pedestrian scale at street level is what makes the whole structure read as smaller than it is.
The Leaning Tower of Pisa and the Arc de Triomphe are both quoted as a height, which is what makes the ratio above a like-for-like figure.
What else is about that size?
Measured the same way, Leaning Tower of Pisa at 56.7 m sits within two fifths of Colosseum at 48.5 m, Taj Mahal at 73 m and Statue of Liberty at 73.2 m. Arc de Triomphe at 50 m has Colosseum at 48.5 m, Boeing 737 at 39.5 m and Christ the Redeemer at 38 m for company, within a quarter. Swapping any of those in for the Leaning Tower of Pisa would move its ratio to the Arc de Triomphe by less than 40%.