The best place to find photos from the Library of Congress is to visit them at their Washington DC location or find them online. The extensive collections are made easily accessible and specific inquiries can be made to librarians specializing in prints and photos.
Google it or go to a library
Look at the library
Someone looking for photos for modern bathroom designs can find them on websites belonging to interior designers. One might also find these photos at renovation stores.
The Library of Congress has a web site so I imagine it is listed there.
Library of Congress inD.C
You can find old phone books, reference books, newspapers, photos, and even death and birth certificates.
60-7847
You can find maps, photos, and graphic illustrations of the Korean War at your local library. You can also find information at the Smithsonian Institute in Washington DC.
The 11 most bizarre and disturbing photos can be found online. You can also find these images at your local library or bookstore.
There are many good places one can look for photos of animals. There are books at the local library which have photos. An excellent source would be the internet where one can find thousands of photos of animals of every type imaginable.
I do believe you would have to go to the Library of Congress in Washington D.C.
I can find no evidence of it. The Library of Congress website does not say anything about it, nor do the mainstream media. It may be that the Library of Congress is restricting some of its hours due to budget cuts, or closing certain rooms temporarily for renovations. The best thing to do is contact the library and ask. I enclose the link to contact them.