An artist and a historian talk trees: What they mean, and what it takes to get city-dwellers to see them clearly.

With simple phrases beamed in light, the Illuminator Collective appropriates buildings' exteriors to reveal the forces at work inside.

A new Monument to Gay and Transgender People merges strength and fragility, as well as communion and isolation, by the banks of the Hudson River.

The stylized figures of Keith Haring have spread across the world, but his radical vision hasn’t always travelled with them.

Seed libraries can restart agriculture after disasters. But what of useless plants? Two artists save the spontaneous, weedy species that serve no purpose but their own.

It’s a park, it’s a gallery, it’s a community hub! At Socrates Sculpture Park, temporary art works, hand-me-down plants, and shipping containers top the remains of an East River marine terminal.

Fred Hill recounts the history of poetry on the Tube and the Subway — and argues that the presence of verse means different things to Londoners and New Yorkers.

Kristian Sanford contemplates the subjects and gradual decay of memorial murals in Bed-Stuy and considers how time simultaneously erodes and enhances these very personal but highly public artworks.