Before automated lanes, young boys were used to reset bowling pins after each turn.

There are definitely laws and regulations that would prohibit this dangerous testing strategy in present times.

Even from the ground, the NYC skyline has changed significantly. Also this is not how construction works anymore.

At the National Zoo in Washington, D.C. in the early 1900s, visitors could apparently hang with the animals.

This photo from 1908 shows how the acceptable fashion of the time affected women's bodies.

Can we bring these kinds of cycles back, please?

Australian swimmer Annette Kellerman's one-piece swimsuits were seen as indecent and she was arrested for them in 1907.

The transit system in Boston looks very different these days.

For those of us who didn't live through war rationing (and 10-cent canned goods), this photo from the 1940s feels so foreign. Rations were imposed on civilians to ensure that

there were adequate supplies for soldiers at the warfront. 

Iron lungs were used in polio epidemics to help people breathe on their own after muscle failure. According to reports, there are only three of the antique machines

left in operation.

Remember when just the massive bust of the Statue of Liberty was on display in a park in Paris during the 1878 Paris World's Fair?

The only familiar thing about this photo of New York City is the crowd.

This is how some people lived in Sydney, Australia in the 1890s.

While generally frowned upon in the United States, in 1915, shooting down a bald eagle, for its feathers or otherwise, was really a big deal. Do not try this today.

In 1940, the Bald Eagle Protection Act was passed, prohibiting the killing of these birds.

Once upon a time, the only way to get ice was by delivery from an iceman.

Back when human-filled factories were a thing, it was someone's job to sit above the workers and entertain them by reading.

19th century bathing machines are where people changed into swimwear once at the beach.

In the 1920s, ice cream men rode by on bicycles with little trailers on the back.

Just your typical picnic at a cricket match. You don't do this every Saturday?

Gym class in 1930s Australia was...different. Or, maybe gym class in Australia is different in general. Physical Culture classes, known as Physie, are designed specifically for girls and women to

promote fitness through dance and choreography. One thing that's definitely changed is the workout clothes, from these stiff, belted numbers to the much more comfortable, breathable athletic wear of today.

This photo was taken around 1912, when getting your animals to a doctor was more complicated.

Taking a photo for the 'gram back in 1930 would have been so annoying.

These women in the 1920s are making plane wings by hand.

This is inventor Hiram Maxim with the first ever "portable" machine gun in the late 1880s.

Space launches have since been reduced to YouTube streams and never make the front page of newspapers.

Automat restaurants were like the proto-Amazon Go store in that person-to-person contact was unnecessary.

Imagine a newsstand where the focus was actual newspapers and magazines and not lotto tickets and $3 Snapple.

Midtown Manhattan has changed significantly since the days of the original Pennsylvania Station on 33rd Street.

Taken pre-1930, this photo shows a group of Qagyuhl men and women aboard their hand-carved boats.

Are those swings for babies or some kind of finger trap torture device?

We haven't been through Wyoming since ever, but hopefully the rail system has been updated from these elevated stilts.

No that isn't a typo — this is supposedly Las Vegas in 1895, before all the neon.

A lot has changed with technology since the 1960s.

These sorority girls are ready for their 1949 rush party at Florida State University.

Criminals must have been a lot weaker in the 1920s.

Medical ultrasonography wasn't introduced until the 1960s, which is why this expectant mother's baby is being x-rayed in 1944.

They had drones in 1941, kind of. Notice that this radio-controlled helicopter had to be tethered to the massive remote like a mechanical kite.

At one point in not-too-distant past, this was the most exciting piece of technology you could have in your car.

That Amazon package would have taken a bit longer in 1900.

Bath houses were a thing in ancient Rome and for some reason Americans in the early 1900s thought it was a sanitary thing to emulate.