What is the name of the world's largest hot spring?
Old Faithful
Grand Prismatic Spring
Morning Glory Pool
Blue Lagoon
What is the name of the largest cave system in the world?
Son Doong Cave
Mammoth Cave
Jewel Cave
Wind Cave
What is the name of the famous geyser in Yellowstone that erupts regularly?
Old Faithful
Castle Geyser
Giant Geyser
Steamboat Geyser
Which natural wonder is known as the 'Cave of Crystals'?
Giant Crystal Cave
Naica Mine
Crystal Cave
Ice Cave
What is the name of the largest living thing on Earth?
Blue Whale
Giant Sequoia
Pando
Great Barrier Reef
Which famous rock formation is located in Central Australia?
Table Mountain
Uluru
Devils Tower
Half Dome
What is the name of the world's highest waterfall that freezes in winter?
Multnomah Falls
Yosemite Falls
Helmcken Falls
Taughannock Falls
Which is the largest desert in North America?
Mojave Desert
Sonoran Desert
Chihuahuan Desert
Great Basin Desert
What is the name of the world's most active geothermal area?
Yellowstone
Rotorua
Iceland
Valley of Geysers
Which is the largest lake by surface area in Africa?
Lake Victoria
Lake Tanganyika
Lake Malawi
Lake Chad
What is the name of the deepest lake in the world?
Lake Baikal
Crater Lake
Lake Superior
Lake Tanganyika
Which natural bridge is the longest in the world?
Rainbow Bridge
Landscape Arch
Fairy Bridge
Natural Bridge
