It's about 6,000 times as tall as The Golden Gate Bridge.
In other words, 816 miles is 5,790 times the height of The Golden Gate Bridge, and the height of The Golden Gate Bridge is 0.000173 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 7,000 times as tall as The Space Needle.
In other words, 816 miles is 7,140 times the height of The Space Needle, and the height of The Space Needle is 0.00014 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 7,500 times as tall as St. Paul's Cathedral.
In other words, 816 miles is 7,550 times the height of St. Paul's Cathedral, and the height of St. Paul's Cathedral is 0.000132 times that amount.(London, England, United Kingdom)
St. Paul's Cathedral measures 0.1080 miles to its peak. The southwest tower of the Cathedral contains the bell known as "Great Paul," which is the largest bell in Great Britain at 15,000 kg (16.5 tons), outweighing the more iconic Big Ben bell by about 3,000 kg (3 tons).
It's about 8,000 times as tall as The Washington Monument.
In other words, 816 miles is 7,757.20 times the height of The Washington Monument, and the height of The Washington Monument is 0.00012891 times that amount.(Washington, D.C.)
The Washington Monument measures 0.105190 miles tall, with some discrepancy due to the fact that the Monument's base is slightly below the surrounding ground. Interrupted in its construction by the American Civil War, it was almost 36 years between groundbreaking and the completion of construction.
It's about 8,000 times as tall as The Singapore Flyer (Ferris wheel).
In other words, 816 miles is 7,960 times the height of The Singapore Flyer (Ferris wheel), and the height of The Singapore Flyer (Ferris wheel) is 0.000126 times that amount.(a.k.a. 新加坡摩天观景轮, a.k.a. சிங்கப்பூர் ஃப்ளையர், a.k.a. Pelayang Singapura) (Marina Centre, Singapore)
The Singapore Flyer has a height of 0.1030 miles. Based on recommendations from Feng Shui masters, the wheel was re-engineered to spin in the opposite direction five months after it began operating.
It's about 8,000 times as long as The Seventeenth hole of Pebble Beach.
In other words, 816 miles is 8,110 times the length of The Seventeenth hole of Pebble Beach, and the length of The Seventeenth hole of Pebble Beach is 0.000123 times that amount.(fully Pebble Beach Golf Links) (Pebble Beach; Monterey, California) (from Blue Tee)
The seventeenth hole on Pebble Beach Golf Links is a par 3 measuring 0.1010 miles from the blue tee. This hole was the site of professional golfer Jack Nicklaus' 1972 U.S. Open win, which included a 1-iron shot that bounced off the hole's flag and resulted in a birdie.
It's about 8,500 times as tall as Blackpool Tower.
In other words, 816 miles is 8,310 times the height of Blackpool Tower, and the height of Blackpool Tower is 0.00012 times that amount.(Blackpool, Lancashire, England, United Kingdom) (height to peak)
Blackpool Tower, part of an entertainment complex in Blackpool, Lancashire, England, measures 0.0982 miles to its peak. Under ideal conditions, visitors to the highest accessible point of the tower can see as far as the Isle of Man — 59.70 miles to the northwest.