A map of Barcelona from 150 BCE to 2010

A broad history of Barcelona

We gave you Barcelona’s history in under 400 words. If you’re craving more detail but still don’t want to read a textbook, check out this overview by the European Association of Archeologists. It starts with the Iberian settlements scattered across modern-day Barcelona during the Iron Age and ends with the impacts of the 2010 financial crisis.

A look at Barcelona's contemporary art scene

Barcelona is no stranger to influential artists: Antoni Gaudi, Joan Miró, and Pablo Picasso, to name a few. It was the cradle of the Catalan Modernism and Art Nouveau movements in the 19th and 20th centuries. Art continues to be an important form of expression in Barcelona, but style is always evolving. This piece introduces readers to the obscure neighborhoods and budding galleries shaping Barcelona's contemporary art scene.

51 must-see attractions in Barcelona

Planning a trip to Barcelona? Check out this comprehensive list of the city’s most iconic sites. It’s organized from most well-known to least, so if you’re pressed for time, the authors recommend concentrating on the top of the list.

The 1992 Olympics changed Barcelona

Barcelona wasn’t always a global tourist hotspot. Before hosting the 1992 Olympics, the city’s coastline was blocked by factories, green spaces were scarce, and tourism was minimal. But after securing the Olympic games, everything changed.

Watch Mediterranean power shift over millennia with this animated map

The ancient Mediterranean holds a vast amount of history; from Egypt to Rome, the coasts of this sea are home to some of the most advanced ancient civilizations. This video displays on a map the many different civilizations that rose and fell around the fertile region, from the year 2500 BCE to 0 BCE.

The evolution of Mexico City, from the Aztecs to today

The sprawling modern city situated in the Valley of Mexico began a millennium ago as an island in the middle of Lake Texcoco, connected to land through a series of causeways. Learn how the Aztecs built Tenochtitlan, how the Spaniards conquered it, why the lake disappeared, and more with this visually rich history and geography of a city of 9 million people.

The impact of FC Barcelona on Catalan pride

FC Barcelona is one of the most decorated soccer clubs in the world and has also become a source of Catalan pride. It all started in 1899 with a Swiss-German accountant and journalist, a newspaper advertisement, and 11 talented soccer players. Read this article to learn about the team’s humble beginnings and how its history overlaps with the Catalan resistance to Spanish rule.

Mapping early New York

Want to see how Wall Street (and New York City as a whole) has changed over time? Use this timeline and map to see Manhattan today overlaid with the precise boundaries of early land grants to the Dutch in the 1600s. Scroll through the progress of city building through the first century of European settlement there.

View depictions of world maps throughout history

The first map to use latitude and longitude positions was created by Ptolemy in 150 CE, over 700 years after the oldest known world map, the Imago Mundi, was made with a Babylonian clay tablet. The Spanish crown created a secret master map from hundreds of sailors’ reports.

Visualizing Byzantium in the year 1200

This is a computer reconstruction of the Byzantine capital at its apogee, just before the Fourth Crusade. Alongside detailed renderings of the Hippodrome and Hagia Sophia, it includes dozens of the imperial city’s less famous monuments, many of which can still be found in modern Istanbul. The reconstruction is a work in progress, and the Byzantium 1200 X account routinely posts updates.

Catalonia and the War of the Spanish Succession

The War of Spanish Succession (1702-1715) was an international and civil war that reshaped Europe’s political landscape and brought Catalonia under Spanish rule. Created by the Museum of the History of Catalonia in Barcelona, this virtual exhibit guides readers through the 13-year war with a specific eye for its effects on Catalonia. Galleries of artwork from the period on the right-hand side of the page help immerse visitors in the history.

A detailed interactive timeline of technology since 1500

Tech devices are heirs to a complex history of both technological invention and social history. What if you could visualize how radio, TVs, and other devices are connected to the past and each other? Trace the elaborate genealogies of your phone and computer with this interactive timeline showing tech inventions since 1500.

An archive of the art of the Sanborn fire insurance maps

For a century, US insurance companies used Sanborn Fire Maps to decide the premiums customers would pay for fire insurance. These maps were designed to show the building materials used in each structure in 12,000 communities across 300,000 maps. While they have become obsolete, these maps are still useful for historians and urban designers, and anyone interested in lovely, original typography. Dive into the most artful Sanborn Fire Maps with this passion project collection.

Data visualizations showing population growth around the world

This page presents data, charts, and analysis on changes in population growth around the world. Over the last few centuries, the human population has gone through an extraordinary change. In 1800, there were 1 billion people; today, there are more...

Maps of murder across medieval England

These interactive maps show the sites of murders across York, Oxford, and London during the 14th Century. Explore the data by clicking site pins or experimenting with map filters, including crime scene type and murder weapon. Each pin includes a blurb on what researchers concluded about the attack, such as how a fight between the London fishmonger and skinner guilds during August 1340 ultimately left one man dead.

Dubai and Barcelona are examples of smart cities

By integrating technology into public transit, utilities, and other municipal systems, these cities aim to reduce costs and enhance the quality of life for their residents. Some of these technologies include adaptive lighting, parking sensors, and underground waste systems.

A virtual visit to La Sagrada Família

La Sagrada Familia is Catalan architect Antoni Gaudí’s magnum opus. The ornate Catholic church has been under construction since 1882, and the main structure isn’t expected to be completed until 2026. Decorative detailing won’t be finished until 2034. Even though it’s a work-in-progress, it’s open for tours, including from a computer screen. Click the link for a 360 view of the iconic church from 10 different vantage points.

During the Medieval Period, urban populations grew significantly

As workers moved from fields to cities throughout the era, large metropolises of enduring strategic importance were formed from Paris, France, to Baghdad, Iraq.

Stanford built a Google Maps for the Roman Empire, revealing how much it cost to travel in the ancient world

An interactive sound map of 8,000 locations around the world

Cities and Memory's global sound map covers 140 countries, featuring paired recordings: original field captures of a moment in time and an artist's recomposition built from the same source. The structure treats every location as both document and raw material, giving 2,500 contributors the same prompt with unpredictable results.

See a 3D reconstruction of Tenochtitlan, the Aztec capital that was home to an estimated population of 200,000 to 400,000.

Visualize your city’s annual daylight map

Type in your town or region and see sunrise and sunset for each day of the year. A separate view shows the number of hours of day versus night for each day. Search a city far north like Oslo, Norway, and compare its graphs to one near the equator (like Singapore).

Explore an interactive map built from more than 100,000 survey responses on where people find joy in their lives

Santa Barbara’s streets are slightly off-kilter because surveyors used shrinkable rawhide

The first survey of Santa Barbara was conducted by sea captain Salisbury Haley in 1851, who notoriously used a less-than-ideal material for surveying. The rawhide links caused significant issues with the city’s grid, as can be seen in this photo essay.

Scroll through a Budweiser historical timeline

From Eberhard Anheuser’s purchase of the Bavarian Brewery in 1860 to the Anheuser-Busch and InBev merger that created what became the world’s largest brewer, this historical timeline highlights the most significant moments in Budweiser’s more than 150-year story.

How long it takes to travel by train from various cities

This interactive allows users to see how long it would take to move from one city to another in Europe via trains.

See to the edge of the universe with this two-decade astronomy project

A New Mexico telescope has captured astronomical data for two decades to compile this map of the universe. Starting from earth and ending at the "edge" of the universe, it shows one slice of the cosmos: a total of 200,000 galaxies.

Visualize the path of every solar eclipse from 1900 to 2099 and see what each looks like when observed from different locations on Earth.

View an interactive collection of historical documents from the Viking project

This collection includes original mission bulletins, engineering and planning documents, and interview segments from more than 80 Viking team members who made the historic exploration of Mars’ surface by a lander possible.

Explore an interactive map of battles from the American Revolution, along with detailed summaries of each engagement

A century of Billboard issues documenting the evolution of popular music.

Explore our favorite visualization of the immense scale of space, from an astronaut to the size of the observable universe

In 1963, a basement renovation in Turkey revealed a passageway to a hidden, multilevel underground city that once housed as many as 20,000 people

Graffiti dates back to at least ancient Pompeii, where citizens scrawled messages to one another on public walls

Explore the history, structure, and species of Australia's Great Barrier Reef with this interactive journey narrated by Sir David Attenborough.

See how fireworks are made and learn how metals like magnesium and copper are responsible for different colors.

Alzheimer's can lead to brain shrinkage, with an average of around 2% of volume reduction per year

Watch this video that uses Lego bricks to explain how venture capital works.

The Mona Lisa's celebrity status and repeated restorations have obscured what made the painting so revolutionary for its time

See the evolution of Ebola vaccine and treatment development.

The syncytiotrophoblast is the outer layer of the placenta and the largest human cell, spanning an area about twice that of a king-sized bedsheet.

Take a 3D tour of the Hajj, Islam's annual pilgrimage to Mecca, undertaken by over 1.5 million Muslims.

Electrical grids worldwide must double their power delivery capacity by 2050 to meet surging demand from AI and electric vehicles.

In 1945, Surrealist artist Salvador Dalí and legendary animator Walt Disney began collaborating on a short film that was not completed until 2003, years after both men had died.

The United States has had a tumultuous relationship with Cuba since its 1959 revolution, highlighted by a nuclear crisis and a decades-long trade embargo.

Hotels in Cannes, the glamorous city on the French Riviera, hire hawks to ward off seagulls during the city's famous film festival.

Budweiser stores yeast derived from the original 1800s strain in a secret bunker, which only the Head of Yeast Management can access—not even the CEO

Gerrymandering works through two techniques: cracking opposing voters across districts to dilute their power, and packing them into a few to waste their votes in lopsided majorities.

Clever Hans was a 1900s horse that was believed to be able to solve math equations, tell time, and read and comprehend German, until a psychology student discovered how he got his answers.

El Niño, Spanish for 'the boy,' was named after Jesus Christ because the phenomenon resembled the weather changes observed around Christmastime.