While being possessed of much of the same class, style and appeal as marble tiles, travertine tiles are much more resistant to dirt and stains. As well as being highly durable, they come in a very wide range of options and are largely maintenance free.
Occasional polishing or restoration of tiles can be needed but this is quite rare. Tile specialists or professional cleaners can use special tools to restore lacklustre tiles to their former glory quite easily, and regular cleaning and maintenance will greatly reduce the likelihood of needing to resort to these more drastic measures to stay proud of your travertine tiles.
Alkaline cleaning products should be used for the tile grout in between the stones to ensure it says clean and free of debris, as well as helping to maintain its colour. However good the tiles look, if the grout is messy the overall effect will be spoilt.
Do not use vinegar, lemon or other acidic cleaners as this will corrode the tile surfaces which can ruin finishes and even cause pits, holes or cracks to start appearing. Alkaline cleaners are safer and can be diluted with water beforehand too.
Make sure you use non abrasive scrubbers, even to remove dried on stains, and make sure the surface is dried thoroughly after cleaning to prevent mildew growth or accidental slipping, especially on high traffic floors. If you use a proper tile sealant when installing your wall or floor the tiles will last even longer!