It's about 9,000 times as wide as a Strand of Spaghetti
In other words, 67 spans is 9,000 times the width of a Strand of Spaghetti, and the width of a Strand of Spaghetti is 0.0001 times that amount.(average; restaurant and supermarket applications) (based on FMA Omcan Italian Made TR50 Counter Top Pasta Machine Extruder 13317)
An average strand of restaurant-grade spaghetti measures 0.0074 spans in thickness. In 2010, a California Buca di Beppo set a world record by preparing a 13,780-lb bowl of spaghetti, served in a swimming pool.
It's about 10,000 times as long as a Grain of Sand
In other words, 67 spans is 12,300 times the length of a Grain of Sand, and the length of a Grain of Sand is 0.0000813 times that amount.(medium grain)
Composed mainly of quartz, mica, feldspar, or magnetite, a grain of sand measures an average of 0.00547 spans. In 2007, a team of seven in Myrtle Beach created the world's tallest sandcastle, which measured 66.10 spans in height.
It's about one-thirty-thousandth as long as The Grand Canyon
In other words, 67 spans is 0.0000343 times the length of The Grand Canyon, and the length of The Grand Canyon is 29,200 times that amount.(a.k.a. Gran Cañón) (Arizona) (Colorado River miles measure)
The Grand Canyon has a total length of 1,950,000 spans along the course of the Colorado River at its bottom. Having opened in early 2007, the Grand Canyon Skywalk allows tourists to stand on a horseshoe-shaped glass walkway 4,810 spans above the floor of Granite Gorge.
It's about one-eighty-five-thousandth as long as The Rhine
In other words, 67 spans is 0.0000116 times the length of The Rhine, and the length of The Rhine is 86,200 times that amount.(a.k.a. Rhein, a.k.a. Rijn, a.k.a. Rhin, a.k.a. Rain, a.k.a. Reno, a.k.a. Rhenus, a.k.a. Ryn) (from near Reichenau, Switzerland through Hoek van Holland, Rotterdam, Netherlands)
The Rhine river runs 5,770,000 spans in total length. The World War II Battle of Arnhem, as memorialized in the 1974 book and 1977 movie A Bridge Too Far, was the first of several attempts to capture key bridges across the Rhine, beginning with the Arnhem Bridge in the Netherlands.
It's about 150,000 times as wide as a Strand of Hair
In other words, 67 spans is 150,000 times the width of a Strand of Hair, and the width of a Strand of Hair is 0.0000067 times that amount.(average)
A strand of human hair averages 99 µm (micrometers), with blond hair being the finest and black hair the thickest. On a healthy scalp, each strand of hair will last up to 6 years.
It's about one-one-hundred-fifty-thousandth as long as The Colorado River
In other words, 67 spans is 0.00000657 times the length of The Colorado River, and the length of The Colorado River is 152,000 times that amount.(a.k.a. Aha Kwahwat, a.k.a. Grand River, a.k.a. Tizon River, a.k.a. Tecon River, a.k.a. Tison River) (from Grand Lake, Colorado through the Gulf of California)
The Colorado River runs 10,200,000 spans in length. Along this length, the river descends from its source, approximately 12,000 spans above sea level in the Rocky Mountains, to its mouth in the Gulf of California.
It's about one-two-hundred-thousandth as long as The Danube
In other words, 67 spans is 0.00000537 times the length of The Danube, and the length of The Danube is 186,000 times that amount.(a.k.a. Donau, a.k.a. Dunaj, a.k.a. Dunav, a.k.a. Duna, a.k.a. Дунав (Dunav), a.k.a. Dunărea, a.k.a. Дунáй (Dunay), a.k.a. Tuna) (from Breg Martinskapelle, Black Forest, Germany through the Danube Delta, Romania)
The Danube river runs 12,500,000 spans in total length. Intersecting Vienna, Austria; Bratislava, Slovakia; Budapest, Hungary; and Belgrade, Serbia, the Danube touches more capital cities than any other river.