How long is 612 spans?
It's about nine-tenths as long as The Shambles

The length of The Shambles is about 660 spans.
(a.k.a. Maze of Twisting, a.k.a. The Great Flesh Shambles) (York, England, United Kingdom) (approximate)
It's about nine-tenths as tall as The Spring Temple Buddha

The height of The Spring Temple Buddha is about 669 spans.
(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)
It's about one-and-one-tenth times as tall as The Great Pyramid of Giza

The height of The Great Pyramid of Giza is about 570 spans.
(a.k.a. Pyramid of Khufu, a.k.a. Pyramid of Cheops) (Cairo, Egypt) (estimated original height)
It's about nine-tenths as tall as Blackpool Tower

The height of Blackpool Tower is about 691 spans.
(Blackpool, Lancashire, England, United Kingdom) (height to peak)
It's about nine-tenths as long as The Seventeenth hole of Pebble Beach

The length of The Seventeenth hole of Pebble Beach is about 709 spans.
(fully Pebble Beach Golf Links) (Pebble Beach; Monterey, California) (from Blue Tee)
It's about four-fifths as tall as The Singapore Flyer (Ferris wheel)

The height of The Singapore Flyer (Ferris wheel) is about 722 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)
It's about four-fifths as tall as The Washington Monument

The height of The Washington Monument is about 740.550 spans.
(Washington, D.C.)
It's about four-fifths as tall as St. Paul's Cathedral

The height of St. Paul's Cathedral is about 761 spans.
(London, England, United Kingdom)
It's about one-and-three-tenths times as long as a Football field
The length of a Football field is about 480 spans.
(American) (total distance; per NFL regulation)
It's about three-fourths as tall as The Space Needle

The height of The Space Needle is about 805 spans.
(Seattle, Washington) (to aircraft warning beacon at peak)
It's about one-and-one-third times as long as a Football (Soccer) Pitch
The length of a Football (Soccer) Pitch is about 459 spans.
(a.k.a. Football Field, a.k.a. Soccer Field) (field length, a.k.a. touchline distance)
It's about one-and-a-half times as tall as Big Ben

The height of Big Ben is about 420 spans.
(officially the clock tower of Palace of Westminster, a.k.a. Houses of Parliament) (London, England)
It's about one-and-a-half times as tall as The Statue of Liberty

The height of The Statue of Liberty is about 406.80 spans.
(a.k.a. "Liberty Enlightening the World," a.k.a. La Liberté Éclairant le Monde) (Liberty Island, New York City, New York) (pedestal base to torch peak)
It's about three-fifths as tall as The Golden Gate Bridge

The height of The Golden Gate Bridge is about 993 spans.
(San Francisco, California and Marin County, California) (height above water)
It's about one-and-four-fifths times as tall as a Giant Sequoia (tree)
The height of a Giant Sequoia (tree) is about 330 spans.
(a.k.a. Sequoiadendron giganteum, a.k.a. Sierra redwood, a.k.a. Wellingtonia)