After the dismantling of the mysterious monolith that appeared in Utah, environmentalists and art experts alike say the object may have done more harm than good

Another unattributed metal structure has sprung up from seemingly nowhere—this time on a Romanian mountainside

Found last week and resembling a John McCracken minimalist sculpture, the object went missing over the weekend, prompting even more conspiracy theories

The large object spotted by biologists resembles the work of sculptor John McCracken, or a prop from Kubrick's sci-fi classic 2001: A Space Odyssey

From a portal to the Utah monolith at David Zwirner to Vivian Springford’s meditative paintings at Almine Rech