Chapter 1
Border blunders and geographical glitches
Chapter 2
Nature's optical illusions and strange landscapes
Chapter 3
Subterranean secrets and deep wonders
Chapter 4
Bizarre settlements and town name eccentricities
YOUR GOAL
Master of Map mishaps and natural magic across North America
Ch 2 · Nature's optical illusions and strange landscapes
schopenhauer Yosemite Firefall Illusion
When the winter sunset starts to glow, The icy water turns to lava flow.
schopenhauer Abraham Lake in Canada traps highly flammable methane bubbles beneath its frozen surface, creating a stunning winter visual.
schopenhauer Sailing stones in California's Death Valley leave long tracks across a dry lakebed without human or animal intervention.
BETA
schopenhauer Drag weird roadside attractions onto the map to discover North America's strangest geographical oddities.
Fun Fact
Moving rocks: For decades, scientists couldn't prove how Death Valley's rocks moved until GPS trackers caught them sliding in 2013.
Glossary
gravity hill (noun)
A location where the surrounding landscape creates an optical illusion, making a downhill slope appear to go uphill. Moncton's Magnetic Hill in New Brunswick famously deceives drivers into believing their cars are rolling uphill.
A location where the surrounding landscape creates an optical illusion, making a downhill slope appear to go uphill. Moncton's Magnetic Hill in New Brunswick famously deceives drivers into believing their cars are rolling uphill.
Quiz
What physical force, combined with thin sheets of melting ice, causes the sailing stones of Death Valley to move?
Quiz
Which ancient civilization considered Yucatan's cenotes to be sacred gateways to the underworld?
Quiz
The sailing stones of Death Valley move across a flat, dry lakebed known by what geographic name?
Quiz
What flammable gas is trapped inside the frozen bubbles of Abraham Lake in Alberta, Canada?
Quiz
What mineral causes the unique circular patterns seen in Spotted Lake, British Columbia during the summer?
Quiz
In which national park can you find the famous sailing stones that mysteriously slide across a dry lakebed?
Quiz
Spotted Lake, famous for its colorful mineral circles, is located in which Canadian province?
Quiz
What geological term refers to the natural limestone sinkholes found throughout Mexico's Yucatan Peninsula?