How big is 13,590,000,000,000,000,000 liters?
It's about five-and-a-half times as big as The Gulf of Mexico
The size of The Gulf of Mexico is about 2,434,000,000,000,000,000.00000000000000000000000 liters.
(water volume)
It's about one-one-hundredth as big as Earth's Oceans
The size of Earth's Oceans is about 1,400,000,000,000,000,000,000.000000000000000000000000 liters.
(Total water volume of Atlantic, Pacific, Indian, Arctic, and Southern Oceans) (estimated)
It's about 3,500 times as big as The Grand Canyon

The size of The Grand Canyon is about 4,170,000,000,000,000.0000000000000000000 liters.
(Coconino County and Mohave Counties, Arizona, near Fredonia and Grand Canyon, Arizona)
It's about 3,500 times as big as an Halley's Comet
The size of an Halley's Comet is about 4,000,000,000,000,000.000000000000000000 liters.
(Comet Halley, officially "1P/Halley") (volume calculated based on 2005 dimensions)
It's about 25,000,000 times as big as Sydney Harbour

The size of Sydney Harbour is about 562,000,000,000 liters.
(formally Port Jackson, a.k.a. Sydney Harbor) (Sydney, New South Wales, Australia) (total estuary water volume at high tide)
It's about 5,500,000,000 times as big as The Great Pyramid of Giza

The size of The Great Pyramid of Giza is about 2,427,614,000 liters.
(a.k.a. Pyramid of Khufu, a.k.a. Pyramid of Cheops) (Cairo, Egypt) (including internal hillock)
It's about 8,000,000,000 times as big as The Melbourne Cricket Ground

The size of The Melbourne Cricket Ground is about 1,700,000,000 liters.
(a.k.a. MCG, a.k.a. "The G") (Yarra Park, melbourne, Victoria, Australia) (internal volume)
It's about 10,000,000,000 times as big as The Houston Astrodome

The size of The Houston Astrodome is about 1,200,000,000 liters.
(a.k.a. Reliant Astrodome, a.k.a. Astrodome, a.k.a. Harris County Domed Stadium) (Houston, Texas)
It's about 150,000,000,000 times as big as Royal Albert Hall

The size of Royal Albert Hall is about 86,650,000 liters.
(a.k.a. Royal Albert Hall of Arts and Sciences) (Westminster, London, England, United Kingdom) (total auditorium volume)
It's about 200,000,000,000 times as big as Spaceship Earth (EPCOT Center)

The size of Spaceship Earth (EPCOT Center) is about 62,000,000 liters.
(a.k.a. EPCOT Center) (Walt Disney World Resort, Lake Buena Vista and Bay Lake, Florida) (total structure volume)
It's about 350,000,000,000 times as big as The US Capitol Rotunda

The size of The US Capitol Rotunda is about 37,000,000 liters.
(formally United States Capitol rotunda) (Washington, D. C.) (total chamber volume)
It's about 550,000,000,000 times as big as The Lincoln Memorial Reflecting Pool

The size of The Lincoln Memorial Reflecting Pool is about 25,600,000 liters.
(Washington, D.C.)
It's about 2,500,000,000,000 times as big as The Goodyear Blimp
The size of The Goodyear Blimp is about 5,740,000 liters.
(for GZ-20A)
It's about 5,500,000,000,000 times as big as an Olympic Swimming Pool
The size of an Olympic Swimming Pool is about 2,500,000 liters.
(FINA regulation; (minimum capacity)
It's about 6,000,000,000,000 times as big as a Hot Air Balloon
The size of a Hot Air Balloon is about 2,200,000 liters.
(four-person capacity; envelope volume; average)