Image by 'Ancient Surfaces' Products: Antique Stone in Bathroom walls, floors and counters. Contacts: (212) 461-0245 Email: Sales@ancientsurfaces.com Website: www.AncientSurfaces.com Although it is often one of the smallest rooms in the house, a bathroom that’s top of the line is one of the most worthwhile investments, especially when you’re looking to sell. Even though the renovation might not come cheap, it will pay off in the long run by increasing the overall value and quality of your home.