September 9, 2013 at 4:24 PM ET
By: News Desk
Photo courtesy of Oxalis
Vietnam's Son Doong cave was only recently explored and now a tour operator is accepting reservations. Tours start at $3,000 per person and only 220 permits are allocated per year. But, for that price, visitors can see giant cave pearls, flying foxes and new plant species.
H/T Vanessa Dennis
The Rundown offers the NewsHour’s unique perspective on the important events of the day with insights from the journalists you trust. » More
Additional Foundation and Corporate Sponsors