It's about as long as The Panama Canal.
It's about nine-tenths as long as The English Channel.
In other words, 120,000 paces is 0.8550 times the length of The English Channel, and the length of The English Channel is 1.170 times that amount.(average width between Isle of Ushant and The Walde Lighthouse) (La Manche, Ärmelkanal, Mor Breizh, Mor Bretannek) (a.k.a. The Channel)
The English Channel measures between 140,000 paces, narrowing as it flows northeast. The world speed record for a Channel crossing by swimmer was set by Australian Trent Grimsey in 2012, with a time of 6 hours, 55 minutes.
It's about four-fifths as long as The 405.
In other words, 120,000 paces is 0.784620 times the length of The 405, and the length of The 405 is 1.27450 times that amount.(a.k.a. I-405, Interstate 405, San DIego Freeway) (Southern California)
Running from Irvine to San Fernando, The 405 runs a total of 152,940 paces. The 405 is the most heavily-trafficed freeway in the United States, with an average speed as low as 8 kph during rush hours.
It's about three-fourths as long as Hadrian's Wall.
In other words, the length of Hadrian's Wall is 1.30 times 120,000 paces.(a.k.a. Roman Wall, a.k.a. The Wall, a.k.a. Vallo di Adriano, a.k.a. Vallum Aelium, a.k.a. Severus' Wall) (from North Tyneside, Tyne and Wear, England, United Kingdom to Cumbria, North West England, United Kingdom)
Hadrian's Wall, which crossed England form the North Sea to the Irish Sea during the time of Roman rule, measures 160,000 paces (about 79 Roman miles). Roman soldiers — at one time up to 10,000 of them — only occupied Great Britain for about 246 years after the wall was built, after which time the local Brits began to take residence the wall's garrisons.
It's about three-and-a-half times as tall as Olympus Mons.
In other words, the height of Olympus Mons is 0.290 times 120,000 paces.(a.k.a. Mount Olympus) (Mars)
The tallest mountain in the solar system, Olympus Mons rises to approximately 35,000 paces. The mountain has been known to astronomers since the nineteenth century because it is tall enough to rise above Mars' frequent dust storms.
It's about one-fifth as long as The Grand Canyon.
In other words, 120,000 paces is 0.2050 times the length of The Grand Canyon, and the length of The Grand Canyon is 4.880 times that amount.(a.k.a. Gran Cañón) (Arizona) (Colorado River miles measure)
The Grand Canyon has a total length of 585,000 paces 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 1,440 paces above the floor of Granite Gorge.
It's about eight-and-a-half times as tall as Maxwell Montes.
In other words, the height of Maxwell Montes is 0.120 times 120,000 paces.(Ishtar Terra, Venus)
Maxwell Montes rises to a total height of 14,000 paces. Since Venus does not seem to have the kind of tectonic activity which gives rise to mountains on Earth, the origin of the Venusian mountain remains the subject of some dispute.