Extell-developed luxury tower One Manhattan Square is making quarantine easier on its residents with its wide array of outdoor amenities. Residents of the building’s Lower East Side condos have access to a one-acre private garden designed by the landscape architects at West 8. Among the many features of the massive outdoor area are fire pits, alfresco dining space, a stargazing observatory, a children’s playground, a covered dog run, a putting green, social courtyards, a birch garden, a sumac meander, an adult treehouse, and a tea pavilion.