Estimated height23 m
3.14Extension ladders
3.3 billionChip transistor gates
Photo from Wikimedia Commons
Hanging Gardens of Babylon (Estimated)
The most mysterious of the Seven Wonders, possibly mythical/Ancient Structures
The Hanging Gardens of Babylon are the most enigmatic of the Seven Wonders of the Ancient World because no definitive archaeological evidence has been found. Ancient accounts describe elaborate tiered gardens ascending like a green mountain, irrigated by screws or chains of buckets lifting water from the Euphrates River. Traditionally attributed to King Nebuchadnezzar II around 600 BC to please his homesick wife, some scholars now believe they may have been in Nineveh instead, or perhaps never existed at all. The descriptions suggest a structure roughly 23 meters tall with terraces supported by stone arches.
Measurements
Estimated base width120 m
400,000Grains of salt
3 millionthsEarth circumferences
Estimated garden area14,400 m^2
29.1 millionthsLake Tahoe surfaces
809 trillionthsPluto surfaces
1,152Parking spots
Estimated terrace depth3.4 m
283Aspirin tablets
12.1Paper towel sheets
Estimated age83 billion s
8,577School semesters
83 trillionCamera flash durations
2.2 tenthsIce ages
Traditionally dated circa 600 BC
Estimated irrigation lift height23 m
7,667Sesame seeds
38.3 billionAspirin molecules
7.7 tenthsLighthouse heights