[Men walking down dunes]

[Horse-drawn cart]

[Sailboats in harbor, Tréboul, Brittany]

[Trans-Continental train]

[Utility lines against a cloudy sky]

[Tug boat on water]

[Smokestacks on ship]

[Orpheus Fountain, Stockholm]

[Smaller ship alongside larger passenger liner]

[Workers and machinery at the Panama Canal, viewed from above]

[Clouds and branches]

[Onboard the S.S. Pennsylvania, near Panama Canal]

[Lux and Laurence Feininger on the beach, Deep, Baltic Coast]