It's about as tall as Blackpool Tower.
(Blackpool, Lancashire, England, United Kingdom) (height to peak)
Blackpool Tower, part of an entertainment complex in Blackpool, Lancashire, England, measures 691 spans to its peak. Under ideal conditions, visitors to the highest accessible point of the tower can see as far as the Isle of Man — 420,000 spans to the northwest.
It's about as long as The Seventeenth hole of Pebble Beach.
In other words, the length of The Seventeenth hole of Pebble Beach is 1.03 times 691 spans.(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 709 spans 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 one-and-one-tenth times as tall as The Spring Temple Buddha.
In other words, 691 spans is 1.03 times the height of The Spring Temple Buddha, and the height of The Spring Temple Buddha is 0.9710 times that amount.(a.k.a. 中原大佛, a.k.a. 鲁山大佛, a.k.a. 魯山大佛) (Fodushan Scenic Area, Lushan County, Henan, China) (including base)
The tallest statue in the world, the Spring Temple Buddha in Henan, China stands at 669 spans tall from its base. The Buddha is located in the 47,300,000-sq. m (11,700-acre) Fodushan Scenic Area near Mount Yao
It's about as tall as The Singapore Flyer (Ferris wheel).
In other words, the height of The Singapore Flyer (Ferris wheel) is 1.04 times 691 spans.(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 722 spans. 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 nine-tenths as tall as The Washington Monument.
In other words, 691 spans is 0.933090 times the height of The Washington Monument, and the height of The Washington Monument is 1.0717 times that amount.(Washington, D.C.)
The Washington Monument measures 740.550 spans 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 nine-tenths as tall as St. Paul's Cathedral.
In other words, 691 spans is 0.9080 times the height of St. Paul's Cathedral, and the height of St. Paul's Cathedral is 1.10 times that amount.(London, England, United Kingdom)
St. Paul's Cathedral measures 761 spans 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 nine-tenths as tall as The Space Needle.
In other words, 691 spans is 0.8580 times the height of The Space Needle, and the height of The Space Needle is 1.170 times that amount.(Seattle, Washington) (to aircraft warning beacon at peak)
Built for a 1962 World's Fair, the Space Needle stands 805 spans 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).