View of Portland, Maine, looking west from City Hall by Marquis Fayette King https://www.rawpixel.com/image/14296481/view-portland-maine-looking-west-from-city-hall-marquis-fayette-kingFree Image from public domain licenseChestnut Street Theatre, Philadelphia by Richards and Betts https://www.rawpixel.com/image/14280599/chestnut-street-theatre-philadelphia-richards-and-bettsFree Image from public domain licenseJaypur; View of the Palace Gardens and Fort, from the Palace by Colin Murray and Bourne and Shepherd https://www.rawpixel.com/image/14316527/image-person-smoke-waterFree Image from public domain licenseRiverboat carrying cargo leaving dock along waterfront on Ohio River. Louisville, Kentucky. Sourced from the Library of… https://www.rawpixel.com/image/12331108/image-person-sky-smokeFree Image from public domain licenseFactory and mills in the industrial city of Waterbury, Connecticut. Sourced from the Library of Congress. https://www.rawpixel.com/image/12326347/image-sky-smoke-public-domainFree Image from public domain licenseWashington Head Quarters, Yonkers, N.Y. by Beckel Brothers https://www.rawpixel.com/image/14305415/washington-head-quarters-yonkers-ny-beckel-brothersFree Image from public domain license[Untitled photo, possibly related to: View of Memphis, Tennessee, from roof of hotel]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12242194/photo-image-sky-smoke-roadFree Image from public domain licenseSt. Paul's From the Foot of Its Hill by Alvin Langdon Coburn https://www.rawpixel.com/image/14321533/st-pauls-from-the-foot-its-hill-alvin-langdon-coburnFree Image from public domain licenseView in Woodward's Gardens, San Francisco, California by Oscar Voss Lange and Ernest W Newth https://www.rawpixel.com/image/14295541/photo-image-cross-art-smokeFree Image from public domain licenseTown Scene with Mission in Background by Louis Fleckenstein https://www.rawpixel.com/image/14282295/town-scene-with-mission-background-louis-fleckensteinFree Image from public domain licenseScott's Oquaga Lake, Deposit, New York (1978) photography in high resolution by John Margolies. Original from the Library of… https://www.rawpixel.com/image/3799957/photo-image-summer-vintage-retroFree Image from public domain licenseSkyline, midtown Manhattan, New York City. Sourced from the Library of Congress. https://www.rawpixel.com/image/12270269/photo-image-sky-smoke-public-domainFree Image from public domain licenseSkyline, midtown Manhattan, New York City. Sourced from the Library of Congress. https://www.rawpixel.com/image/12270332/photo-image-sky-smoke-public-domainFree Image from public domain licenseNew York, New York. Times Square on a rainy day. Sourced from the Library of Congress. https://www.rawpixel.com/image/12294496/photo-image-person-smoke-public-domainFree Image from public domain licenseAir pollution mobile wallpaper https://www.rawpixel.com/image/11560055/air-pollution-mobile-wallpaperView licenseCityscape Downtown River Development View Scenic https://www.rawpixel.com/image/91009/free-photo-image-cityscape-black-and-white-city-architectureView licenseChicago, Illinois. An unusually heavy fog in the early afternoon. Sourced from the Library of Congress. https://www.rawpixel.com/image/12288544/photo-image-plant-person-smokeFree Image from public domain licenseSnow in downtown Providence, Rhode Island. Sourced from the Library of Congress. https://www.rawpixel.com/image/12263565/photo-image-person-sky-smokeFree Image from public domain licenseFriends exploring and enjoying nature shoot https://www.rawpixel.com/image/15296/premium-photo-image-activity-adventure-calmView license[Untitled photo, possibly related to: New York City]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12271723/photo-image-sky-smoke-public-domainFree Image from public domain licensePittsburgh, Pennsylvania in the evening. Sourced from the Library of Congress. https://www.rawpixel.com/image/12278627/photo-image-sky-smoke-public-domainFree Image from public domain licenseDubuque, Iowa. The smoke comes from Dubuque's largest industry, the sash and door mills. Sourced from the Library of… https://www.rawpixel.com/image/12282457/photo-image-cloud-sky-smokeFree Image from public domain licenseMountain Panorama Hill Scenic Hong Kong https://www.rawpixel.com/image/91620/free-photo-image-building-cloud-condominiumView license[Untitled photo, possibly related to: A freighter pulling into New York Harbor]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12264227/photo-image-person-sky-smokeFree Image from public domain licenseMountain Panorama Hill Scenic Hong Kong https://www.rawpixel.com/image/91488/free-photo-image-hong-kong-asia-buildingView license[Untitled photo, possibly related to: Parking lot. Chicago, Illinois]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12259722/photo-image-person-sky-smokeFree Image from public domain license[Untitled photo, possibly related to: Skyline, midtown Manhattan, New York City]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12270176/photo-image-smoke-public-domain-natureFree Image from public domain licenseIndian Travel Destination Beautiful Attractive https://www.rawpixel.com/image/91292/free-photo-image-bird-eye-view-ladakh-indiaView licenseBirdseye view of city from top https://www.rawpixel.com/image/91232/free-photo-image-city-lights-fog-aerial-apartmentsView licenseChicago, Illinois. In the roundhouse at a Chicago and Northwestern Railroad yard. Sourced from the Library of Congress. https://www.rawpixel.com/image/12291048/photo-image-person-smoke-airplaneFree Image from public domain licenseChicago, Illinois. An unusually heavy fog in the early afternoon. Sourced from the Library of Congress. https://www.rawpixel.com/image/12288529/photo-image-plant-person-skyFree Image from public domain license[Untitled photo, possibly related to: Traffic on the main street of Fayetteville, North Carolina at about five o'clock, when… https://www.rawpixel.com/image/12277619/photo-image-person-sky-smokeFree Image from public domain licenseAir pollution background https://www.rawpixel.com/image/11560045/air-pollution-backgroundView licenseCityscape Downtown River Development View Scenic https://www.rawpixel.com/image/91008/free-photo-image-hong-kong-skyline-landscapeView license[Untitled photo, possibly related to: Washington, D.C. Rock Creek Parkway during the construction]. Sourced from the Library… https://www.rawpixel.com/image/12260345/photo-image-person-horse-smokeFree Image from public domain licenseBusiness People Handshake Agreement Team Concept https://www.rawpixel.com/image/116913/image-rawpixelcomView licenseRadio City, New York City (Rockefeller Center). Sourced from the Library of Congress. https://www.rawpixel.com/image/12270991/photo-image-smoke-road-public-domainFree Image from public domain license[Untitled photo, possibly related to: Snow in downtown Providence, Rhode Island]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12263648/photo-image-person-sky-smokeFree Image from public domain licenseMen going home from work at the steel mill in Midland, Pennsylvania. Sourced from the Library of Congress. https://www.rawpixel.com/image/12278004/photo-image-person-smoke-roadFree Image from public domain license[Untitled photo, possibly related to: Pittsburgh, Pennsylvania]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12283215/photo-image-smoke-public-domain-factoryFree Image from public domain licenseCincinnati, Ohio. View of the city across the Ohio river. Sourced from the Library of Congress. https://www.rawpixel.com/image/12296952/photo-image-cloud-frame-plantFree Image from public domain licenseStreet in New Bedford at night during a fog. New Bedford, Massachusetts. Sourced from the Library of Congress. https://www.rawpixel.com/image/12278955/photo-image-smoke-light-roadFree Image from public domain licenseNew York City, foggy morning at Fulton fish market. Sourced from the Library of Congress. https://www.rawpixel.com/image/12294733/photo-image-sky-smoke-public-domainFree Image from public domain licenseBurning the autumn leaves on Broadway in Norwich, Connecticut. Sourced from the Library of Congress. https://www.rawpixel.com/image/12278302/photo-image-plant-person-leavesFree Image from public domain licenseFactories and mills in the industrial city of Waterbury, Connecticut. Sourced from the Library of Congress. https://www.rawpixel.com/image/12275989/photo-image-person-sky-smokeFree Image from public domain licenseAir pollution phone wallpaper https://www.rawpixel.com/image/11560048/air-pollution-phone-wallpaperView licenseNew York, New York. Late evening on the lower East Side. Sourced from the Library of Congress. https://www.rawpixel.com/image/12293184/photo-image-person-sky-smokeFree Image from public domain licenseSilhouette Business People Commuter Walking Rush Hour Concept https://www.rawpixel.com/image/120790/premium-photo-image-abstract-building-businessView license[Untitled photo, possibly related to: West Aliquippa, Pennsylvania]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12284990/photo-image-person-sky-smokeFree Image from public domain licenseChicago, Illinois. In the train concourse at the Union Station. Sourced from the Library of Congress. https://www.rawpixel.com/image/12290939/photo-image-person-smoke-public-domainFree Image from public domain licenseGoing home from work at the steel mill in Midland, Pennsylvania. Sourced from the Library of Congress. https://www.rawpixel.com/image/12278729/photo-image-person-smoke-roadFree Image from public domain licenseArgentine, Kansas. Night view of the Atchison, Topeka, and Santa Fe Railroad shops and roundhouse. Sourced from the Library… https://www.rawpixel.com/image/12291200/photo-image-person-sky-smokeFree Image from public domain licenseSilhouette Business People Commuter Walking Rush Hour Concept https://www.rawpixel.com/image/120622/premium-photo-image-abstract-building-businessView licenseWoman Smiling Mountain Carefree Cloudscape Concept https://www.rawpixel.com/image/15423/premium-photo-image-activity-adventure-calmView licenseSilhouette Meeting Table Office Room Window Indoor Concept https://www.rawpixel.com/image/120534/image-rawpixelcomView licenseBethlehem-Fairfield shipyards, Baltimore, Maryland. Lifting an after peak section. Sourced from the Library of Congress. https://www.rawpixel.com/image/12292938/photo-image-person-sky-lightFree Image from public domain licenseAir pollution blog banner https://www.rawpixel.com/image/11560052/air-pollution-blog-bannerView licenseChicago, Illinois. Waiting for trains in the concourse of the Union Station. Sourced from the Library of Congress. https://www.rawpixel.com/image/12290770/photo-image-person-smoke-roadFree Image from public domain licenseFriends exploring and enjoying nature shoot https://www.rawpixel.com/image/15343/premium-photo-image-activity-adventure-calmView license[Untitled photo, possibly related to: New York, New York. Times Square on a rainy day]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12293732/photo-image-person-sky-smokeFree Image from public domain licenseU.S. 1 turnoff to Baltimore or Annapolis, Maryland. Sourced from the Library of Congress. https://www.rawpixel.com/image/12268905/photo-image-plant-person-skyFree Image from public domain licenseWashington, D.C., in front of Union Station.. Sourced from the Library of Congress. https://www.rawpixel.com/image/12295510/photo-image-person-sky-smokeFree Image from public domain licenseAir pollution background https://www.rawpixel.com/image/11560044/air-pollution-backgroundView license