TV Guide Smithsonian Tuesday

A review of several notable crashes reveals that they were caused by mechanical problems, ranging from mistakes in maintenance and repairs to design flaws.

Investigators discover critical weaknesses in the operations necessary for aircraft to avoid flying into mountains after three terrifying crashes.

A chartered plane carrying the Brazilian Chapecoense soccer team, crashed on their way from Santa Cruz de la Sierra, Bolivia, to Medellin, Colombia in 2016.

An examination of the changes that occur in the aviation industry when civilian airliners crash as investigators try to determine the catalyst of the disaster.

On September 11, 2001, American Airlines Flight 77 was hijacked by five men with Al-Qaeda, and deliberately crashed into the West wall of the Pentagon.

In August 2005, a domestic flight in Peru encounters torrential rain at Pucallpa, its scheduled destination, but the pilots initiate approach anyway.

Norwegian Joy sails amid icebergs in Alaska's Inside Passage, treating guests to glaciers, humpback whales, and the largest zipline in the world.

The crew of the MS Paul Gauguin, a ship that sails through French Polynesia, deals with rough weather, narrow passageways and shallow channels.

A 14-day voyage through Indonesia on Le Soleal goes to places most cruise ships cannot get to, showing its passengers unique wildlife and live volcanoes.

A modern-day ship known as the Royal Clipper pays homage to traditional seafaring ships of the late-1800s with five masts and 42 sails.

The Marco Polo delivers travelers to cities such as Copenhagen, St. Petersburg and Helsinki in late autumn, when crowds are smaller but travel is riskier.

The MS Koningsdam is a Dutch mega-cruise ship operated by Holland America, it is their largest and most technologically advanced ship ever constructed.

The Rocky Mountaineer rail-tour company offers picturesque tours across Western Canada and over the Rocky Mountains as the train goes from Vancouver to Banff.

Passengers can experience an exceptional journey through Ecuador's Andes mountain range and coastal region on the Tren Crucero flagship luxury train.

A tourist train's engineering is challenged every time the train takes passengers through Lima, Peru and up the Andes mountains.

The billion-dollar cruise ship with more than 20 bars and restaurants and pool decks that transform into nightclubs spends a week in the Caribbean.

Instead of lingering in the sunny tropics, one luxury cruise ship ventures into hostile, chilly waters to bring her guests the Antarctic experience.

The MSC Meraviglia cruise ship is the largest ship made by a European cruise line, built by STX France, it can hold up to 4,500 passengers.

A minuscule cruise ship known as Europa 2 offers passengers a unique experience by leaving their Mediterranean destination up to a vote.

The Stella Australis takes passengers to parts of South America few people have seen, visiting sub-polar forests, vast glaciers and other remote areas.

The Grumman C2A Greyhound is a Navy fixed-wing carrier-onboard-delivery aircraft, which allows for more flexibility and access.

Passengers can explore the heart of Australia aboard a luxurious cruise train called The Ghan, which offers additional off-rail excursions at every stop.

A unique cruise ship known as Ocean Endeavour offers passengers a different experience from the usual tropical expedition by traveling across Arctic ocean.

The Sky Princess carries passengers from Fort Lauderdale, Fla., to three Central American stops, and it manages to get into and out of ports despite its size.

The luxurious Rovos Rail travels from Pretoria to Cape Town, South Africa, in classic carriages pulled by a series of steam, diesel and electric locomotives.

A train called the North Rail Express is followed as it travels from the Arctic Coast through a hazardous route to deliver freshly caught seafood.

The Roald Amundsen sails where few ships will ever go, the vessel was built specifically to take passengers on an unforgettable voyage to Antarctica.

Costa Diadema is a Dream-class cruise ship owned by Carnival Corporation which gives its 3,700 passengers the ultimate Mediterranean experience.

The Diamond Princess is a British-registered cruise ship owned and operated by Princess Cruises, carrying passengers to some of Japan's most iconic cities.

The world's first cruise ship running on liquefied natural gas, AIDAnova visits the volcanic landscape and stunning beaches of the Canary Islands and Madeira.