The worlds largest bony fish is the Actinoptergyii.
Ocean sunfish
The A 380 is the world's largest aircraft.
The largest known collection of sulfuric acid in our solar system is the second planet, Venus, which has a crust made mostly of sulfur compounds.
Olympus Mons on Mars, is the largest known volcano in the Solar System.
AlpsThe Alps are the largest mountain system in Europe.Europe's most prominent mountain system is Mount Blanc. This is what it was known a while back but it is now known as Mount Elbrus.
Monsoon
Saturn is the second largest and is known for its fascinating rings
Saturn is the second largest planet in our solar system, and its know for its complex ring system.
Tigris-Euphrates.
The Great Salt Lake is the largest known salt lake in the Western Hemisphere. The earth's largest salt flat is named Salar de Uyuni.
There isn't a known largest gauge for ear piercings. Bear the piercing artist has 7 1/2" (the worlds largest) and is far from done.