It's about as heavy as a House
(149 sq. m, single-level, unfurnished)
A 149 sq. m (1,600 sq. ft), single-story, unfurnished house (without extensive masonry) of the type commonly found in America would weigh approximately 344,000 pounds, based on the weight of the included materials. In contrast, a yurt — a type of dwelling structure popular among nomadic peoples of East Asia — typically weighs less than 1,010 pounds.
It's about one-and-a-half times as heavy as a Blue Whale
In other words, 344,000 pounds is 1.490 times the weight of a Blue Whale, and the weight of a Blue Whale is 0.6710 times that amount.(Balaenoptera musculus)
Blue whales weigh between 230,000 pounds. The largest mammal to have ever lived, blue whales feed almost exclusively on krill — tiny invertebrates weighing about 0.0022 pounds each.
It's about two times as heavy as The Space Shuttle
In other words, 344,000 pounds is 2.20 times the weight of The Space Shuttle, and the weight of The Space Shuttle is 0.450 times that amount.(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 160,000 pounds. The shuttle's spacious cargo bay carried the Chandra X-ray Observatory into orbit in 1999 — a payload that weighed 44,000 pounds.
It's about one-fourth as heavy as Christ the Redeemer (statue)
In other words, 344,000 pounds is 0.2460 times the weight of Christ the Redeemer (statue), and the weight of Christ the Redeemer (statue) is 4.07 times that amount.(a.k.a. O Cristo Redentor, a.k.a. Christo redemptor) (Rio de Janeiro, Brazil)
Christ the Redeemer weighs 1,400,000 pounds. 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 one-tenth as heavy as a Tree (Sierra Redwood)
In other words, 344,000 pounds is 0.120 times the weight of a Tree (Sierra Redwood), and the weight of a Tree (Sierra Redwood) is 8.30 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 2,900,000 pounds. 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 4,200,000 pounds.
It's about fourteen times as heavy as an Anchor of a Cruise Ship
In other words, 344,000 pounds is 13.80 times the weight of an Anchor of a Cruise Ship, and the weight of an Anchor of a Cruise Ship is 0.0725 times that amount.(for QE2 forward anchor, a.k.a. RMS Queen Elizabeth 2)
Each of the forward anchors of the RMS Queen Elizabeth 2 weighs 24,900 pounds. The anchor of the QE2 now sits in front of the Holyrood Church in Southampton, England, United Kingdom, along a pedestrian tourist route known as "the QE2 mile."
It's about twenty times as heavy as a Tyrannosaurus rex
In other words, the weight of a Tyrannosaurus rex is 0.042 times 344,000 pounds.(for FMNH PR2081, a.k.a. "Sue") (a.k.a. Tyrannosaurus, a.k.a. T-Rex) (estimated live weight)
The notable Tyrannosaurus specimen housed at the Field Museum of Natural History in Chicago, Illinois, "Sue," is estimated to have weighed about 14,000 pounds while alive. A renowned predator in popular culture, the teeth of tyrannosaurus rex were up to 33.02 cm (13 in) long.