It's about four-fifths as heavy as Christ the Redeemer (statue).
In other words, 538 tonnes is 0.847 times the weight of Christ the Redeemer (statue), and the weight of Christ the Redeemer (statue) is 1.18 times that amount.(a.k.a. O Cristo Redentor, a.k.a. Christo redemptor) (Rio de Janeiro, Brazil)
Christ the Redeemer weighs 635 tonnes. The statue overlooks the city of Rio de Janeiro from atop the 709.9-meter (2,329 ft) granite peak in the Tijuca Forest National Park.
It's about two-fifths as heavy as a Tree (Sierra Redwood).
In other words, 538 tonnes is 0.41 times the weight of a Tree (Sierra Redwood), and the weight of a Tree (Sierra Redwood) is 2.4 times that amount.(a.k.a. Giant Sequoia, a.k.a. Sierran redwood, a.k.a. Wellingtonia, a.k.a. "Big Tree", Sequoiadendron giganteum)
The weight of wood in a Giant Sequoia is 1,300 tonnes. General Sherman, a specimen in Sequoia National Park in Visalia, California, is the largest tree in the world by volume, with an estimated weight of about 1,900 tonnes.
It's about three-and-a-half times as heavy as a House.
In other words, 538 tonnes is 3.45 times the weight of a House, and the weight of a House is 0.29 times that amount.(149 sq. m, single-level, unfurnished)
It's about five times as heavy as a Blue Whale.
In other words, 538 tonnes is 5.148 times the weight of a Blue Whale, and the weight of a Blue Whale is 0.1943 times that amount.(Balaenoptera musculus)
It's about seven-and-a-half times as heavy as The Space Shuttle.
In other words, the weight of The Space Shuttle is 0.13 times 538 tonnes.(for Endeavour, a.k.a. OV-105, a.k.a. Orbiter Vehicle-105) (empty weight, excluding main engines)
When empty, the space shuttle Endeavour weighs 71 tonnes. The shuttle's spacious cargo bay carried the Chandra X-ray Observatory into orbit in 1999 — a payload that weighed 20 tonnes.
It's about one-twentieth as heavy as The Eiffel Tower.
In other words, 538 tonnes is 0.0533 times the weight of The Eiffel Tower, and the weight of The Eiffel Tower is 18.8 times that amount.(a.k.a. La Tour Eiffel) (Paris, France) (total weight)
It's about one-twenty-fifth as heavy as The Brooklyn Bridge.
In other words, 538 tonnes is 0.04039 times the weight of The Brooklyn Bridge, and the weight of The Brooklyn Bridge is 24.76 times that amount.(a.k.a. New York and Brooklyn Bridge) (Manhattan and Brooklyn, New York City, New York) (total weight)