Largest Country by area

• Russia
• USA
• Australia
• China

Largest Muslim Country by land area

• Saudi Arabia
• Kazakhstan
• Indonesia
• Malaysia

Largest Peninsula

• Indian Peninsula
• The Horn of Africa
• Arabian Peninsula
• Alaskan Peninsula

Largest Saltwater Lake

• Lake Van
• Great Salt Lake
• Qinghai Lake
• Caspian Sea

Largest Freshwater Lake

• Lake Victoria, Africa
• Lake Huron, NA
• Lake Michigan, US
• Lake Superior, NA

Largest Man Made Lake

• Lake Volta, Ghana
• Manicouagan Reservoir, Canada
• Lake Kariba, Africa
• Bratsk Reservoir, Russia

Largest Sea

• Coral Sea
• Philippine Sea
• Arabian Sea
• South China Sea

Largest Delta

• Ganges-Brahmaputra Delta
• Niger Delta, Nigeria
• Orinoco Delta, Venezuela
• Indus Delta, Pakistan

Largest Gulf

• Gulf of Mexico
• The Gulf of Guinea
• Gulf of Alaska
• Hudson Bay

Largest River

• Nile
• Amazon
• Yangtze
• Mississippi River