Both lobbies contain terrazzo floors and marble walls. The building has twin terrazzo and marble lobbies and terracotta embellishments. Interior finishes include limestone, granite, wood veneers, terrazzo and stainless steel. Marble-chip, cementitious terrazzo requires three layers of materials. Improvements include refurbished bathrooms, new ticket counters, and terrazzo flooring. The light fittings, staircases with wrought-iron banisters and terrazzo lobby floors have all been restored. In areas with tile or terrazzo, patterns in the tile help to identify exits. The smoking room has a masculine theme with terrazzo floors, brown walls, and copper ceilings. The stations are finished in terrazzo and colourful tiles. Circularity is the leitmotif, from the rotunda to the inlaid design of the terrazzo floors. Floors of terrazzo or mosaic are common in circulation spaces of his public buildings. The buildings are clad in white terrazzo and have balconies made of blue glass. Much of the preliminary work of terrazzo workers is similar to that of cement masons. Today, most of the terrazzo installed is epoxy terrazzo. Decorative patterns are created by using dividers which creates lines between different colored terrazzo mixtures.