Over 20 years ago, two Stanford PhD students created Google, Tamagotchi toys were a worldwide phenomenon, and “Harry Potter and the Sorcerer’s Stone” hit shelves for the first time.

A decade later, in 2007, Netflix launched its video streaming service, Instagram didn’t exist, and most of us were still using flip phones.

From the cities we live in to the technologies we use every day, we’ve rounded up 54 before-and-after photos that show just how quickly the world changes.

Check out the incredible transformations!

THEN: Here’s a photo of the original iPhone next to an advertisement for the iPhone 3G.

Apple co-founder and then-CEO Steve Jobs debuted the first iPhone on June 29, 2007. Its multi-touch display, which let you use two or more fingers on the screen at once, revolutionized mobile phones forever.

NOW: In a mere decade, Apple has transformed the way we use our phones.

The company released three new iPhones in September 2018: the iPhone XS, iPhone XS Max, and iPhone XR. None of the three devices have home buttons.

THEN: This is what text messaging looked like on the original iPhone.

Apple’s instant messaging service, iMessage, wasn’t introduced until 2011 on iOS 5.

NOW: Ten years later, the most recent iPhones can turn your facial expressions into talking animal emojis.

Today, you can communicate with your friends using stickers, emojis, Bitmojis, GIFs, and more – all within Apple’s Messages app.

THEN: If you wanted to book a flight before the internet existed, you had to call an airline, trek to an office, or contact a travel agent.

You could also smoke once you got on the plane, according to Thrillist.

NOW: Websites and smartphone apps have transformed the way we book flights — and so much more.

Today, sites like Google Flights make it easier than ever to find affordable tickets, travel for less, and compare prices.

You can also use apps like Hopper to get instant alerts on your phone whenever the price of flight drops. Hopper can also help you identify the cheapest time to fly during the holiday season and show you personalized recommendations for your next vacation.

THEN: In the early 2000s, selfies were often taken with a digital camera or in front of a bathroom mirror.

Who can forget the iconic “Myspace pic”?

NOW: The popularity of selfies has exploded in the past decade, thanks to technology and social media platforms like Snapchat.

Apple added a front-facing camera to the iPhone 4 in 2010, giving way to a new generation of selfies that were a lot less blurry and much more posed. Since then, selfies have become a worldwide phenomenon: Instagram has more than 390 million #selfie photos to date.

THEN: The original Macintosh desktop computer hit the market for the first time on January 24, 1984.

The Macintosh 128K retailed for $2,495, two days after it was introduced to the world in a Super Bowl commercial.

NOW: The iMac Pro desktop, which came out in 2017, looks like this.

Apple’s iMac Pro, which launched in June 2017, features the most sophisticated graphics yet for a Mac and is designed for “pro” users.

THEN: The term “augmented reality,” or AR, was coined in 1990 by Boeing researcher Tom Caudell.

In simplest terms, AR technology enhances your perception of the real world with computer-generated sensory input or information. In 1992, Louis Rosenberg built one of the earliest working AR systems, Virtual Fixtures, for the US Air Force.

The system used AR to overlay information on the workspace, improving the military’s ability to control machinery remotely.

NOW: In the past two decades, AR has become increasingly accessible in our everyday lives.

AR technology is now used in everything from car gadgets, to wearables, to Snapchat and Instagram filters.

Apple’s most recent phones are also all optimized for AR. Using the company’s ARKit platform, developers have already created some incredible apps that will likely change the way we play games, order food, measure furniture, and more.

THEN: Computer scientist Ivan Sutherland invented the first virtual reality head-mounted display system with his student, Bob Sproull, in 1968.

Dubbed The Sword of Damocles, Sutherland and Sproull’s design was so heavy that it had to be suspended from the ceiling and strapped onto someone’s head in order to be used.

Unlike AR, virtual reality (VR) completely replaces the real world with a computer-generated simulation. Since The Sword of Damocles was somewhat transparent, it’s also considered an early form of modern AR technology as well.

NOW: Like AR technology, VR headsets have made the leap from research labs to consumers across the world.

These days, you can play games, explore outer space, and immerse yourself in a new environment using just a VR headset and your smartphone.

THEN: In 1998, only 51% of classrooms in the US had internet access.

That number increased to 94% by 2005, according to the US Department of Education.

NOW: AR and VR technology is changing the way students learn and engage with schoolwork in classrooms.

Using VR technology, students can now take virtual field trips, interact with course materials, learn STEM skills, and more.

THEN: This is what Google looked like in 1998.

Stanford PhD students Sergey Brin and Larry Page registered Google.com as a domain on September 15, 1997. The two originally planned to call the site “BackRub.”

NOW: This is what Google looks like today.

Google is now the most visited website and the most popular search engine in the world. Its parent company Alphabet has a current market cap of $808.10 billion.

THEN: Myspace was the biggest thing in the burgeoning social-media space back in the mid-2000s.

For a time, Myspace was one of the most influential websites in the world. According to data from the analytics site Hitwise, cited by Mashable, Myspace surpassed Google Search and Yahoo Mail as the top website in the United States in 2006.

NOW: Facebook reigns supreme with 2.32 billion monthly active users worldwide as of April 2019.

As a HuffPost timeline of Myspace’s history points out, Facebook caught up to Myspace in 2008 and never looked back. Today, Mark Zuckerberg’s brainchild has over 400 million more active monthly users worldwide than the next-leading social media platform, YouTube, per Statista.

THEN: Here’s what Netflix looked like in 2005.

Netflix began as online service that allowed customers to rent DVDs by mail. The company first launched its on-demand streaming service in 2007.

NOW: And here’s what Netflix looks like in 2019, 22 years after its launch.

The number of Netflix subscribers surpassed the number of cable TV subscribers in the US for the first time in 2017.

THEN: Brands like FedEx used to boast logos that hardly resemble their modern branding.

The company was founded under the name Federal Express in 1971. Though its first logo featured the company’s full name, its purple, white, and orange coloring has remained the same since its inception.

NOW: FedEx has a shortened name today, and boasts an iconic logo with a hidden symbol.

Designed by Lindon Leader in 1994, FedEx’s current logo has a hidden arrow between the letters “E” and “X”.

THEN: McDonald’s used a cartoon chef named Speedee for branding when it first opened.

The first two renditions of McDonald’s logos, Speedee and Ray Kroc’s original Golden Arches, still appear on a sign outside of the oldest operating McDonald’s location in Downey, California.

NOW: The fast-food company’s main logo is a sleek, stand-alone rendition of the classic Golden Arches.

McDonald’s scrapped the Speedee logo for the first form of its iconic golden arches in 1961.

THEN: Starbucks’ famous siren had a very different look when the coffee chain first opened in 1971.

The siren, a two-tailed mythical creature similar to a mermaid, features prominently in the center of Starbucks’ logo. Back in the 1970s, the siren was intricately drawn and topless.

NOW: Starbucks unveiled its most recent logo update in 2011.

The company embraced its green and white coloring and simplified its logo while keeping the siren.

THEN: In the 1950s, a whopping 44% of Americans smoked cigarettes on average.

According to Gallup, that number stayed at or above 40% until the early 1970s.

NOW: 24% of US adults smoked in the 2000s, on average, but many people have turned to vape as an alternative.

According to a study published in August 2018 in the Annals of Internal Medicine, cited by Reuters, almost one in 20 US adults use e-cigarettes.