Atlas Obscura travels to the hidden wonders of South America

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Riverrrrr

Our friends Dylan Thuras and Josh Foer of Atlas Obscura recently trekked through South American in search of hidden wonders, from an "everlasting" lightning storm to Caño Cristales, considered by some to be the "most beautiful river in the world" thanks to the surreal hues generated by its algae population. Dylan and Josh are sharing their travel diaries, photos, and videos in an ongoing series at Slate.

"World of Wonders 2011: Curious and exotic places"