Road through forest in Estonia

The World's Most Perplexing Destinations You Just Can't Explain

By Sanjay Surana

VACATIONS

Horizontal Falls
The Kimberly in Australia hosts a horizontal waterfall. The cascade occurs when the tides go in and out and water drives between the skinny gaps of gorges.
Bermuda Triangle
Ships and planes vanish without explanation in this Atlantic region. Vessels have gotten lost without sending out distress calls and with no apparent malfunctions.
However, the Bermuda Triangle may be more an urban legend than a real mystery, as Australian scientist Karl Kruszelnicki says no more vessels go missing here than other places.
Black Sun
On some evenings the sky above the Tøndermarsken, a reserve in the south of Denmark, may have sections that instantly turn black due to thousands of starlings dancing.
While a visual treat, the reason why the birds do this remains a bit of a mystery. It may be to fend off predators or to signal other starlings to roost for the evening.
Blood Falls
At the cusp of an Antarctic glacier, a cascade of blood-like color spills into the sea. Studies suggest this occurs due to water containing nanospheres rich in iron.
Caño Cristales
At certain times of year, the Caño Cristales river in Colombia fills with multiple colors, forming a liquid rainbow of blue, green, red, blue, black, and more.
Riverweed plants that sit on the riverbed actually create the colors when sunlight activates them — a scientific explanation for a seemingly otherworldly occurrence.