Feargus O'Sullivan

Inside London's New Subterranean Urban Farm

The farm, located 115 feet below a busy South London street, uses hydroponic techniques to grow pesticide-free crops.

Where Europeans Spend the Most on Rent, Mapped

Renters in the U.K. spend the most in absolute terms and as a proportion of their average income.

Paris Is Making 7 Iconic Squares More Pedestrian-Friendly

“A city where you’re surrounded by hubbub, abandoned to cars—that isn’t a [real] city,” said Mayor Anne Hidalgo.

An Incredibly Detailed Map of Europe's Population Shifts

The map provides a level of detail previously unavailable. It is the first ever to collect data published by all of Europe’s municipalities.

How Finland Could Turn Horse Poop Into Power

A Finnish company is experimenting with using horse manure as fuel for biomass energy production.

A Car-Free Future for Central Dublin

Last week, the city council unveiled a plan to banish cars from key sections of the congested city center by 2017.

The Heart of London's Tech Hub Is About to Get a Major Overhaul

This week, Transport for London (TfL) approved a plan to pump £25 million into making Silicon Roundabout a safer, more pleasant place to be. But is it enough?

Amsterdam's Bold Housing Solution: 10 Artificial Islands

To create the islands, the Dutch use a technique called the “pancake method.”

The Case for Turning London Into a National Park

Don’t scoff—London’s landscape of scruffy beauty deserves celebration and protection.

Why the U.K.'s Tower Blocks Deserve a Vast, Visual Archive

There’s long been a polarized debate surrounding this type of housing, but that’s finally starting to change.

How a Pair of Game-Changing Mayors Could Transform Madrid and Barcelona

Former judge Manuela Carmena and activist Ada Colau are each ready for a fight in their respective hometowns.

How Paris Is Trying to Fix One of the Worst Planning Decisions It Ever Made

The city is erecting a grandiose glass canopy over one of its most contested sites as part of a new culture and shopping complex.

The Fantastical, Yet Still Plausible, Plan to Build a New Megacity in Turkey

In the run-up to June’s general elections, the country’s opposition party announced plans for a new city called Merkez Turkiye that would cost $200 billion to construct.

Berlin's Increasingly Unhappy Relationship With Marijuana

The discovery of 700 marijuana plants is just the latest in an ongoing saga in and around Kreuzberg’s Görlitzer Park.

Life-Size 'Street Graphs' Illustrate London's Housing Crisis

Someone has been plastering existing utility boxes to represent shocking statistics on street corners.

In Paris, Plans for a Seine Reinvention

Mayor Anne Hidalgo has announced an "almost philosophical project" to take the famed river's quayside back from cars.

How Legalizing Squatting Became a Winning Issue in the Barcelona Mayor's Race

Mayoral candidate Ada Colau thinks squatters shouldn't be evicted from unused buildings. Some polls show she's in the lead.

The Paint Job That Enraged London's Super-Rich

How this brightly striped Kensington mews house became the talk of the fanciest part of town.

Downtown Athens Isn't Dead, But It Could Still Use a Revamp

The city center, which isn't in great condition, is about to undergo a major transformation. Will people miss the way it is now?