The Leaning Tower, Pisa (must see)

The Leaning Tower of Pisa is the city’s most famous landmark and one of the most recognizable architectural symbols in the world. Built between 1173 and 1372 as the bell tower of Pisa Cathedral, the structure began to lean during construction when its foundations settled into soft sandy soil.

If you stand near the base, you can already notice that the tower is not perfectly straight. Medieval builders attempted to correct the problem as work continued, slightly adjusting the upper levels and unintentionally creating the gentle curve that makes the tower so distinctive today.

Looking upward, the tower reveals eight levels of elegant open galleries supported by slender marble columns. These repeating arcades give the structure a surprisingly light appearance despite its massive weight. Move a little more to the side, and you'll notice the lean more clearly, especially where the upper floors visibly shift away from the vertical line of the base. Inside the belfry hang seven bells — one for each note of the musical scale — with the largest bell installed in 1655.

You can climb its famous spiral staircase in either 294 or 296 steps, a unique feature of the leaning tower, as the seventh level contains two fewer steps on the north-facing staircase due to the tilt. As you make your way upward, the slope becomes noticeable underfoot, while small openings along the walls offer changing views across Miracles Square. From the top, visitors are rewarded with wide views of the cathedral complex, Pisa’s historic center, and the surrounding Tuscan landscape.

One of the most famous stories associated with the Leaning Tower involves Galileo Galilei and his early experiments on motion. According to tradition, Galileo simultaneously dropped two objects of different weights from the tower to demonstrate that their rate of fall is independent of mass, challenging the long-held Aristotelian belief that heavier objects fall faster.

A curious fact many visitors find surprising is that the Leaning Tower has survived at least four strong earthquakes since the 13th century. Engineers discovered that the same soft ground that caused the tower to lean actually helps protect it during earthquakes, preventing the structure from vibrating in a way that could cause serious damage. Ironically, the soil that once threatened the tower’s stability is also one of the reasons it still stands today.