It's about five times as tall as The Golden Gate Bridge.
In other words, 0.6840 miles is 4.850 times the height of The Golden Gate Bridge, and the height of The Golden Gate Bridge is 0.2060 times that amount.(San Francisco, California and Marin County, California) (height above water)
The height of each tower of Golden Gate Bridge is 0.1410 miles above the surface of the San Francisco Bay. One of the key designers of the bridge, Charles Ellis, had no engineering degree when he began working on the project, but would later go on to write what became a standard textbook on structural engineering, and would ultimately be forced to complete his calculations on the bridge by working without pay for five months.
It's about one-fifth as tall as Mount Elbrus.
In other words, 0.6840 miles is 0.19510 times the height of Mount Elbrus, and the height of Mount Elbrus is 5.1260 times that amount.(a.k.a. Mingi Tau, a.k.a. Эльбрус, a.k.a. იალბუზი) (Karachay-Cherkessia and Kabardino-Balkaria, Russia) (west summit)
The west summit of the dual-summit volcano Mount Elbrus is 3.5060 miles at its peak and is the highest peak in both Russia and the European continent. Until 1976, a cable car would take visitors to the mountain as far up as the Garabashi camp, located at an elevation of 2.3610 miles.
It's about one-fifth as tall as a Kilimanjaro.
In other words, 0.6840 miles is 0.1868660 times the height of a Kilimanjaro, and the height of a Kilimanjaro is 5.351430 times that amount.(a.k.a. Mount Kilimanjaro) (Tanzania) (to Uhuru peak; 2008 gravimeter measurement)
Kilimanjaro rises to 3.660370 miles at its peak. An isolated peak with no surrounding mountain range, Kilimanjaro is considered the world's tallest freestanding mountain.
It's about one-fifth as tall as Mount Logan.
In other words, 0.6840 miles is 0.18470 times the height of Mount Logan, and the height of Mount Logan is 5.4140 times that amount.(Kluane National Park and Reserve, Yukon, Canada) (elevation)
The highest mountain in Canada, Mount Logan has a total height of 3.7030 miles. The high altitude and northern latitude of the mountain resulted in one-time temperature of -77.5 °C — the lowest temperature ever recorded outside of Antarctica.
It's about one-fifth as tall as Denali.
In other words, 0.6840 miles is 0.17770 times the height of Denali, and the height of Denali is 5.6270 times that amount.(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)
The highest mountain peak in North America, Denali's South Peak measures 3.8480 miles above sea level at its peak. The impetus for the name Mount McKinley was US president William McKinley of Ohio, and disputes over the which of the mountain's names should be officially recognized regularly occur between Ohio Congressmen and Alaska politicians.
It's about six times as tall as The Space Needle.
In other words, 0.6840 miles is 5.980 times the height of The Space Needle, and the height of The Space Needle is 0.1670 times that amount.(Seattle, Washington) (to aircraft warning beacon at peak)
Built for a 1962 World's Fair, the Space Needle stands 0.1140 miles tall. With a track-and-wheel design inspired by railroad mechanics and a precisely-configured balance, the restaurant near the top of the space needle requires just a 1.5 hp motor to rotate at speeds of about 0.053 kph (0.033 mph).
It's about one-fifth as long as The Las Vegas Strip.
In other words, 0.6840 miles is 0.160 times the length of The Las Vegas Strip, and the length of The Las Vegas Strip is 6.30 times that amount.(Las Vegas Boulevard S and W from Russel Rd to Sahara Ave)(Paradise, Nevada through Winchester, Nevada).
Although technically located beyond the city limits of Las Vegas (along with the well-known "Welcome to Fabulous Las Vegas" sign), the stretch of road known as the "Las Vegas Strip" runs 4.20 miles along Las Vegas Boulevard South and West from Russel Road at the south end to Sahara Avenue at the north end. The casinos and hotels on the Strip display an estimated total of 15,000 miles of neon light tubing.