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How long is 123 kilometers?
It's about as long as Hadrian's Wall
Flag of The UK
The length of Hadrian's Wall is about 120 kilometers.
(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)
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It's about one-and-one-tenth times as long as The 405
Flag of The US
The length of The 405 is about 116.540 kilometers.
(a.k.a. I-405, Interstate 405, San DIego Freeway) (Southern California)
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It's about one-and-one-fifth times as wide as The English Channel
The width of The English Channel is about 107 kilometers.
(average width between Isle of Ushant and The Walde Lighthouse) (La Manche, Ärmelkanal, Mor Breizh, Mor Bretannek) (a.k.a. The Channel)
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It's about one-and-two-fifths times as long as The Panama Canal
Flag of Pamana
The length of The Panama Canal is about 88 kilometers.
(Canal de Panamá) (Panama)
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It's about three-tenths as long as The Grand Canyon
Flag of The US
The length of The Grand Canyon is about 446 kilometers.
(a.k.a. Gran Cañón) (Arizona) (Colorado River miles measure)
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It's about four-and-a-half times as tall as Olympus Mons
The height of Olympus Mons is about 27 kilometers.
(a.k.a. Mount Olympus) (Mars)
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It's about one-tenth as long as The Rhine
The length of The Rhine is about 1,320 kilometers.
(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)
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It's about eleven times as tall as Maxwell Montes
The height of Maxwell Montes is about 11 kilometers.
(Ishtar Terra, Venus)
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It's about eleven-and-a-half times as deep as The Challenger Deep (Marianas Trench)
The depth of The Challenger Deep (Marianas Trench) is about 10.9020 kilometers.
(near Marianas Islands, a.k.a. Ladrones Islands, northwestern Pacific Ocean) (depth below sea level)
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It's about thirteen-and-a-half times as tall as a Mauna Loa
Flag of The US
The height of a Mauna Loa is about 9.1680 kilometers.
(Hawaii) (Hawaiian island volcano) (total height from seafloor)
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It's about fourteen times as tall as Mount Everest
Flag of China and Flag of Nepal
The height of Mount Everest is about 8.848860 kilometers.
(a.k.a. Mount Chomolungma, a.k.a. Sagarmatha, a.k.a. Mount Qomolangma, a.k.a. सगरमाथा, a.k.a. Chajamlungma, a.k.a. ཇོ་མོ་གླང་མ, a.k.a. 珠穆朗玛峰, a.k.a. Zhūmùlǎngmǎ Fēng) (Sagarmatha Zone, Nepal and Tibet, China) (to summit, excluding snow depth)
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It's about seventeen-and-a-half times as tall as Aconcagua
Flag of Argentina
The height of Aconcagua is about 6.96190 kilometers.
(a.k.a. Cerro Aconcagua) (Mendoza, Argentina)
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It's about eighteen times as long as The Las Vegas Strip
Flag of The US
The length of The Las Vegas Strip is about 6.80 kilometers.
(Las Vegas Boulevard S and W from Russel Rd to Sahara Ave)(Paradise, Nevada through Winchester, Nevada).
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It's about one-twentieth as long as The Colorado River
Flag of The US
The length of The Colorado River is about 2,330 kilometers.
(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)
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It's about twenty times as tall as Denali
Flag of The US
The height of Denali is about 6.1930 kilometers.
(a.k.a. Mount McKinley, a.k.a. Doleika, a.k.a. Traleika, a.k.a. "The Great One") (Denali National Park and Preserve, Alaska) (South peak)
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