TV Guide Smithsonian Wednesday

The State Railway of Thailand travels through ancient areas, historic tunnels and raging rivers; the infamous Thai-Burma "Death Railway" is featured.

Based in Stockholm, the Hector Rail is an independent train haulage provider operating in Europe, and hauls timber for paper products in Ostrand, Sweden.

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.

The Celebrity Solstice carries nearly 3,000 passengers on a luxurious journey along Australia's northern coast, with 10 restaurants and 12 bars.

Sailing from Chile all the way to Costa Rica, guests paraglide over sand dunes, cruise through mangroves, and zipline through jungles on a luxurious ship.

Carnival Vista is the latest edition to the Carnival Cruise Line, but it suffers from growing pains and it's up to a captain and crew to resolve its issues.

New York's Grand Central gets a stunning 1400-foot tapering next door neighbor.

Engineers are challenged by an apartment building torn apart by a man-made canyon, the Gateway Arch in St. Louis, Missouri and a triangular office building.

Designers share what inspired their radical structural ideas, including a unique port authority building in Belgium and a skinny skyscraper in Manhattan.

A new performance center with a tent-like glass-and-steel lobby tests engineers in Kansas City; two twisting apartment towers make heads spin in Ontario.

The engineering and design history behind the Museum of African American History, the Montreal Tower once abandoned and the Equinor building in Oslo.

Host Jay Ellis learns more about the construction of a library spanning a railway line and how a skyscraper was built in record time.

Host Mike Davidson fixes vessels for the U.S. Coast Guard by replacing engine parts, removing a large can from a buoy and fixing a helicopter.

Host Mike Davidson visits the UPS Worldport, the biggest automated package sorting facility in the world, to see if it's in need of any repairs.

Host Mike Davidson joins the Assault Craft Unit 5 to help fly and fix an overhauled LCAC that's dropping off troops for a beach assault training mission.

Host Mike Davidson decides to push his limits by working with a team of elite high ropes techs and helping them with fixes that 45 stories up a skyscraper.

An examination of unusual and inventive structures around the world includes a mobile research station in Antarctica and a concert hall on the Canary Islands.

A mountain-top center defies extreme altitude; a stunning museum is sunk into an old dock; a 600-foot tower with floating gardens rises in Singapore.

Host Jay Ellis explores the construction of the many buildings designed to be both environmentally friendly and resistant to seismic activity.

Engineers are put to the test with a new Olympic and Paralympic museum's cutting-edge accessible design and a gravity-defying curved glass skyscraper in Milan.

Exploring the engineering and design history behind a renovated 145-year-old museum, an innovative condo in Miami and the world's steepest mountain railway.

Get a stunning view of the soul, strength and spirit of this historic land on Aerial Mexico.

Host Jay Ellis goes to the Vancouver House, Norway's Under Restaurant and the Seattle Central Library to figure out how these visionary buildings were created.

Designers and engineers share what inspired their radical structural ideas, including a massive sky garden in Singapore and the world's most slender tower.

Host Mike Davidson goes to Cirque Du Soleil to meet the talented teams that are in charge of maintaining the machines behind the circus' stage shows.

The world's only underwater research habitat fell into disuse during the pandemic, but Mike and his team work to revive it despite choppy seas.

A report is shared on the accident of a West Air Sweden Flight near Lake Akkajaure in Sweden during a cargo flight, which killed both crew members.

A Bulgarian airliner gets hijacked and to save them the hijackers must be convinced that their demands have been met before the planes fuel runs out.

After the Flydubai Flight 981 enters a rapid descent and crashes in Russia, investigators realize that it aborted its second landing attempt in poor weather.

A team of aerial investigators investigates a trio of crashes and learns that the nuts and bolts of each plane went unchecked, which spells catastrophe.