The Library of Congress has an outstanding collection of Photochroms dating from 1890s-early 1900s. These are not colour photographs, but ink-based photolithographs. They were primarily used as travel-postcards, but still serve as an example of beautifully composed landscape and city photography.
Shelbourne Hotel, Dublin.
Klampenborg Hermitage with view of the park, Copenhagen, Denmark.
Loen, Kjendalskroenebrae, Nordfjord, Norway.
Gols Church with Hovenstuen and Staburet, Christiania, Norway.
Fingal's Cave, Scotland
The road from Eide to Voss, Hardanger Fjord, Norway