Terrazzo Flooring
Terrazzo flooring was popular between 1930 and 1970 in the U.S. but nowadays it’s only used in office buildings and hotel/apartment lobbies. Materials like marble and granite are used instead.
Tiffany Lamps
This one is hard because who doesn’t love a Tiffany lamp…right? While this famed light fixture may be elegant and hold significant value, it makes even the most modern of rooms look dated.