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Dive deep into the world's most extreme tunnels! From Moscow's icy hazards and Swiss disasters to Vietnam warfare hideouts and Tokyo's mighty defenses.
2 wrz 2014 · Exploring the world's most dangerous and inspirational waterways, from white water rafters taking on undefeated rapids on the Congo River to Antarctic waters' frozen fist. From mammoth canals to ferocious seas, the world's waterways are vital to life on Earth.
Explore the world's most extreme airports in this thrilling episode! Witness jaw-dropping landings at St. Martin's Princess Juliana Airport, where planes fly...
Towns built three miles high in the mountains, where people survive on precious little oxygen, 747 jumbo jets that wipe out deadly wildfires and mile deep lakes - these are the most extreme places, structures and vehicles in the world.
6 kwi 2005 · The Most Extreme: Swarms hunts out the biggest hordes in the animal kingdom and compares them to the largest of human gatherings. We're not talking about get-togethers of several hundred; we're talking millions, and even billions!
Across the world roads are vital lifelines. Witness mountains blasted to keep roads open, the worlds worst traffic, and a one-lane road with a 1900 foot drop, known as Death Road. These are the 10 most extreme roads in the world.
Season 1. From amazing airports carved into unstable ice shelves, to spectacular bridges that send you through clouds and railways running a schedule of homemade trains - these are the most jaw-dropping and extreme places in the world.
