Lawson's C-2 biplane airliner completed flights from Milwaukee to New York City and Washington, DC, in 1919. Its introduction led to commercial air travel becoming more common, Airways magazine reported.

But when he tried to build a larger passenger aircraft designed to carry 34 people in 1921, it crashed in a field, bringing an end to his company, according to the National Air and Space Museum.

Lufthansa began its official flight service in 1926, according to the airline's website.

You can't stick your arm out of a plane window anymore.

It wasn't until the 1930s that the first plane with a pressurized cabin was built, Smithsonian magazine reported.

These Stinson "Detroiter" planes were the first closed-cabin planes used by a commercial airline, DBusiness magazine reported.

Charles Lindbergh flew the first nonstop solo flight across the Atlantic Ocean in his single-engine plane, Spirit of St. Louis (pictured), according to Encyclopedia Britannica.

People don't really dress up to go on planes anymore, but there can be surprising benefits if you do.

In addition to carrying people, trains transported mail and manufactured goods.

British author P.G. Wodehouse was photographed leaving for a family vacation from Waterloo Station in London in 1929 wearing a three-piece pinstripe suit.

Watching movies on your phone wouldn't become an option until much later.

The Empire State Express (pictured) operated between New York City and Buffalo, New York, from 1891 to 1967, according to the Fort Wayne Railroad Historical Society.

In 1929, authorities caught crates of whiskey disguised as green tomatoes in the refrigerator car of a cargo train traveling from Holandale, Florida, to Newark, New Jersey.

Karl Benz is widely credited as inventing the first automobile between 1885 and 1886, according to the Library of Congress.

In the 1920s, they began to be replaced with drive-in pumps to decrease traffic, according to the University of Michigan.

Mayor Charles F. Sullivan of Worcester, Massachusetts, held up a sign that said, "Clear the road! This is my 20th birthday" while taking a drive in 1923.

There were around 82,000 police in the US in 1920, according to US Census data. By 1930, that number reached 130,000.

You were on your own.

Cars were simply equipped with an instrument panel, steering wheel, lighting switch, and gear shift hand lever.

The 1920s were known as the "golden age" of road building, according to the US Department of Transportation. Buses and trucks grew in popularity thanks to the Federal Highway Act of 1921, which funded the construction of a national highway system.

These days, people turn tourist buses into tiny homes.

Before the nickel-operated turnstiles, a ticket-chopper manually cut tickets at the gate. Today, a subway ride costs $2.90.

Cruise ships today have Go Kart race tracks and zip lines.

English theatrical producer Charles B. Cochran, composer Sir Noel Coward, and their entourage boarded the Berengaria in 1928 dressed to impress.

Guests wore gowns and tuxedos on the dance floor. On modern cruise ships, dress codes aren't enforced.

Swimsuit styles have changed over the years.

Even though the formal dinners and ball gowns of the old days have turned into buffets and flip flops, cruise ships continue to offer a host of amenities and travel routes that keep people coming back.