It's about 550 times as tall as a Brachiosaurus
In other words, 6.920 kilometers is 530 times the height of a Brachiosaurus, and the height of a Brachiosaurus is 0.002 times that amount.(based on comparable bone measurements, height to head)
Dinosaurs in the genus Brachiosaurus had an estimated height (at the head with neck fully extended) of up to 0.013 kilometers. A resin cast of the first Brachiosaurus specimen, owned by the Field Museum in Chicago, is currently on display at the O'Hare International Airport.
It's about one-five-hundred-fiftieth as long as The Mississippi River
In other words, 6.920 kilometers is 0.00184 times the length of The Mississippi River, and the length of The Mississippi River is 544.4 times that amount.(from Lake Itasca, Minnesota through Pilottown, Plaquemines Parish, Louisiana)
The total length of the Mississippi River is 3,766 km. Prior to the development of soil erosion programs, the Mississippi River would carry approximately 400 million metric tons of sediment from its banks to the Gulf of Mexico every year.
It's about 650 times as tall as a Telephone Pole
In other words, 6.920 kilometers is 630 times the height of a Telephone Pole, and the height of a Telephone Pole is 0.002 times that amount.(a.k.a. Utility Pole, a.k.a Power Pole, a.k.a. Telegraph Pole, a.k.a. Telegraph Post, a.k.a. Hydro Pole) (exposed height; per Florida Public Service Commission average)
A standard telephone pole is 0.011 kilometers tall. Despite alternatives, most telephone poles in the US are made of wood — most commonly pine — and have a lifespan of 25 to 50 years, depending on climate and preservatives applied.
It's about one-six-hundred-fiftieth as long as The Distance from L.A. to New York
In other words, 6.920 kilometers is 0.0015 times the length of The Distance from L.A. to New York, and the length of The Distance from L.A. to New York is 649 times that amount.(Los Angeles, California to New York City, New York) (via I-10 E, I-15 N, I-70 E, I-76 E, I-80 E, I-280 E)
The total length of the freeway route from Los Angeles, California to New York City, New York via Interstate 80 is 4,490 km long. This route intersects eleven states and several major cities, including Las Vegas, Nevada; Denver, Colorado; Lincoln, Nebraska; Omaha, Nebraska; Des Moines, Iowa; South Bend, Indiana; and Cleveland, Ohio.
It's about one-six-hundred-fiftieth as long as I-80
In other words, 6.920 kilometers is 0.0014920 times the length of I-80, and the length of I-80 is 670.237 times that amount.(a.k.a. Interstate 80, a.k.a. Keystone Shortway) (net length)
Interstate 80, crosses the continent of North America from Teaneck, New Jersey to San Francisco, California and covers a total length of 4,638.03 km. A 60 km stretch between mile marker 318 in Grand Island, Nebraska and mile marker 390 in Lincoln, Nebraska is the longest straight path in the US Interstate system.
It's about 850 times as long as a London bus
In other words, 6.920 kilometers is 826 times the length of a London bus, and the length of a London bus is 0.0012 times that amount.(Routemaster Double-Decker, RM standard specification)
The Routemaster Double-Decker buses, well-known as icons of London, measure 0.00838 kilometers in length. The buses were said to be well-designed for travel in the London traffic, as they offered an open door for riders to board and exit even while the bus was moving at low speeds, and a full-time conductor to collect fares.
It's about one-nine-hundredth as long as The Great Wall of China (wall only)
In other words, 6.920 kilometers is 0.00111 times the length of The Great Wall of China (wall only), and the length of The Great Wall of China (wall only) is 904.2 times that amount.(长城, 長城, Chángchéng, a.k.a. 万里长城, 萬里長城, Wànlǐ Chángchéng) (a.k.a. "The long wall of 10,000 Li") (from Shanhaiguan through Lop Nur, China) (wall segments only)
The Great Wall of China has total wall segment length of 6,259 km. Built and maintained in multiple sections over about eleven centuries, the Great Wall is currently suffering the effects of erosion, especially in the older sections made primarily out of mud.