On weekends, Philadelphia's Center City has fully rebounded to its pre-pandemic volume of people out and about. Other cities are also seeing after-hours activity rebound with a vengeance. Jumping Rocks/UCG/Universal Images Group via Getty Images hide caption
1313 L St. in Washington, D.C., was formerly an office building. By the end of this year, it will be home to newly finished apartments. Richard Morrison, Erin Kenney/NPR hide caption
Families gather in a playground with a splash pad and swings in Philadelphia's Fairmount Park. Philadelphia has multiple projects underway to make this and other large parks in the city more resilient to heat and other effects of climate change. Ryan Kellman/NPR hide caption
Most people in the United States live in cities. And most people who live in urban areas primarily get outside by going to city parks. Climate change is putting pressure on people and parks alike. On a warm night in Washington, D.C. neighbors gather to put on their own July fireworks display. Ryan Kellman/NPR hide caption
Mayor Sokhary Chau addresses the assembly during the Lowell City Council swearing-in ceremony on Monday in Lowell, Mass. Julia Malakie/AP hide caption
Children attend online classes at the Crenshaw Family YMCA in Los Angeles. Schools are having a hard time covering the costs required for in-person and online learning during the pandemic. Patrick T. Fallon/AFP via Getty Images hide caption
Empty offices sit above empty retail stores on Broadway in downtown Manhattan. As commercial real estate continues to lie vacant around the U.S., it may contribute to a vicious economic cycle that reshapes our cities. Ryan Kailath for NPR hide caption
Plastic fencing and landscaping boulders replaced homeless campsites on this block in downtown Denver. Advocates for the homeless fear that displacing encampments risks spreading the coronavirus throughout the homeless community. Jakob Rodgers/Kaiser Health News hide caption
The city of Wuhan, where the coronavirus first began to spread, is pictured on May 14. Many Chinese cities have seen rush hour traffic return to pre-pandemic levels — or worse — after reopening, according to traffic data company TomTom. Cities around the world are trying to figure out how to avoid disastrous gridlock as residents resume travel while avoiding public transit. Hector Retamal/AFP via Getty Images hide caption
Detroit faces a $350 million deficit and is cutting city workers' pay. Jeff Kowalsky/AFP via Getty Images hide caption
A man decorates a bistro table outside his restaurant amid the coronavirus pandemic in Atlanta on April 27. As states reopen, some are allowing restaurants to add outdoor seating in streets and parking lots. Chandan Khanna/AFP via Getty Images hide caption
A man wearing a face mask as a preventive measure against the spread of the new coronavirus walks next to commercial buildings in the Raffles Place financial business district in Singapore on April 14. Roslan Rahman/AFP via Getty Images hide caption
A person sleeps on a sidewalk near New York's Times Square this past week. A new report says more and more American cities are passing laws that make it illegal to sleep outside, on the street, in a park or in your own car. Jeenah Moon/Getty Images hide caption
Traffic moves along 42nd Street in Midtown Manhattan on Jan. 25, 2018. After decades of efforts by transportation advocates, the state of New York has approved a plan to add congestion pricing to the city, charging drivers who enter a designated zone of Manhattan. Drew Angerer/Getty Images hide caption
Ford is buying electric scooter company Spin in what experts say is the biggest investment of an automaker into "micromobility." David Paul Morris/Bloomberg via Getty Images hide caption
Shared scooters and bicycles are spreading to several major U.S. cities while policymakers are scrambling to find ways to ensure that riders are safe. David Paul Morris/Getty Images hide caption
State representatives work in the house chambers at the State House in Montgomery, Ala. A federal appeals court sided with workers from Birmingham, Ala., who argued that state lawmakers racially discriminated against the majority-black city by blocking a minimum wage hike. Brynn Anderson/AP hide caption
Amazon says the second headquarters will be a "full equal" to its corporate headquarters in Seattle, Wash., shown here. David Ryder/Getty Images hide caption
The URB-E electric folding bicycle is displayed Nov. 28 inside the Technology Pavilion at the 2017 LA Auto Show. Frederic J. Brown/AFP/Getty Images hide caption
Buildings are seen near the ocean in North Miami. Broward County and many communities in southeast Florida have been aggressive and proactive in preparing for the effects of climate change. Joe Raedle/Getty Images hide caption
The suns sets as an iceberg floats in the Nuup Kangerlua Fjord near Nuuk in southwestern Greenland, where glaciers have been melting. David Goldman/AP hide caption
Sidewalk Labs, a unit of Google parent Alphabet, is partnering with Toronto to redesign part of the city's eastern waterfront as a high-tech urban neighborhood. Sidewalk Labs hide caption