Discover 10 formerly secret tunnels now open for public tours—from North Korea’s hidden war tunnel to Alcatraz’s Civil War passages—each offering a…
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Open
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Explore the 10 perilous hikes that remain open today, from Japan’s iconic Mount Fuji to China’s daring Huashan plank walk. Discover risks, tips, and…
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Misc.
10 Accidents to Make You Think Twice About Swimming in Open Water
by Johan Tobiasby Johan TobiasJumping into a lake or ocean seems like a nice way to cool off on a hot day. Or maybe playing in…