It's about one-six-thousand-five-hundredth as heavy as The Brooklyn Bridge
In other words, 2,100 kilograms is 0.0001577 times the weight of The Brooklyn Bridge, and the weight of The Brooklyn Bridge is 6,341 times that amount.(a.k.a. New York and Brooklyn Bridge) (Manhattan and Brooklyn, New York City, New York) (total weight)
The total weight of the Brooklyn Bridge is approximately 13,320,000 kilograms. In a promotional event to prove the bridge's stability shortly after it opened, entertainer P. T. Barnum led a parade of 21 elephants across it in May of 1884.
It's about 7,000 times as heavy as a Human Heart
In other words, 2,100 kilograms is 6,800 times the weight of a Human Heart, and the weight of a Human Heart is 0.00015 times that amount.(human; adult)
The average human heart weighs about 0.310 kilograms. Each minute, the heart pumps between 10 and 20 liters (3 to 5 gallons) of blood through its chambers.
It's about 10,000 times as heavy as a Hamster
In other words, the weight of a Hamster is 0.0001 times 2,100 kilograms.(for Syrian hamster, a.k.a. golden hamster, a.k.a. Mesocricetus auratus; adult)
An adult Syrian hamster has a typical weight of about 0.20 kilograms. Known for transporting food in the pouches of their cheeks so that they can bury it later, some hamsters can store up to 25 kg of food in their borrows.
It's about one-ten-thousandth as heavy as The Statue of Liberty
In other words, 2,100 kilograms is 0.00008520 times the weight of The Statue of Liberty, and the weight of The Statue of Liberty is 11,700 times that amount.(a.k.a. Liberty Enlightening the World, a.k.a. La Liberté éclairant le monde) (total weight, including foundation)
The total weight of the Statue of Liberty, including her base is roughly 24,600,000 kilograms. The statue was designed using an optical trick known as "forced perspective" to make the statue appear proportionally correct when viewed from its base and is, in actuality, disproportionately large at the top.
It's about 15,000 times as heavy as a Billiard Ball
In other words, 2,100 kilograms is 12,882.6643641950 times the weight of a Billiard Ball, and the weight of a Billiard Ball is 0.0000776236942708310 times that amount.(American-style, WPA specifications)
Per the World Pool-Billiard Association, a billiard ball weight must weigh between 0.15592237718750 kilograms and 0.170097138750 kilograms. According to legend, the difficulty in obtaining elephant ivory for the manufacture of billiard balls in the 19th century inspired the search for a replacement material, which led to the development of the first industrial plastic.
It's about 15,000 times as heavy as a Puck (Hockey)
In other words, 2,100 kilograms is 12,882.6643641950 times the weight of a Puck (Hockey), and the weight of a Puck (Hockey) is 0.0000776236942708310 times that amount.(Ice hockey)
A standard ice hockey puck weighs between 0.15592237718750 kilograms and 0.170097138750 kilograms. Hockey pucks can be shot or passed at speeds of up to 160 kph (99 mph) during games.
It's about 15,000 times as heavy as a Baseball
In other words, 2,100 kilograms is 14,453.7209939740 times the weight of a Baseball, and the weight of a Baseball is 0.0000691863361979190 times that amount.(MLB rules)
Per Major League Baseball rules, a baseball must weigh between 0.1417476156250 kilograms and 0.148834996406250 kilograms. A major league pitcher can throw a baseball at up to 150 kph (91 mph) (with a fastball pitch), with record-setting pitches as fast as 171 kph (106 mph).