1. Earlier being 5.5 degrees ,the tower now leans at about 3.99 degrees.
2. Construction of the tower occurred in three stages across 177 years.
3. The height of the tower is 55.86 m from the ground on the low side and 56.70 m on the high side.
4. The construction work of the Tower began on 9th August, 1173.
5. The Tower has been closed for public since 1988 so as to prevent it from any sort of danger to its inclination.