1721 centimeters = 677.953 inches
Here are some comparisons to known objects of similar size:
1. 1721 centimeters is longer than a standard school bus, which measures around 480 inches in length.
2. It is also longer than a blue whale, the largest animal on Earth, which can reach lengths of up to 600 inches.
3. 1721 centimeters is slightly shorter than the height of the Great Pyramid of Giza, which is 756 inches tall.
4. It is longer than a typical football field, which is 360 inches in length.
5. 1721 centimeters is roughly the same length as a bowling lane, which measures around 679 inches.
6. It is shorter than the height of the Statue of Liberty, which stands at 3055 inches.
7. 1721 centimeters is longer than the wingspan of a Boeing 747 airplane, which is typically around 212 inches.
8. It is shorter than the height of the Eiffel Tower, which measures 9862 inches.
9. 1721 centimeters is longer than a standard basketball court, which is 470 inches in length.
10. It is roughly the same length as a football field goal post, which has a crossbar measuring 680 inches.