You've put a lot of care into choosing your furnishings. And with continued care at home, they should share your address for many years to come. Now for your owner's manual...
Dust with soft dry cloth.
Do not leave spills unattended.
Do not use abrasive cleaner.
Travertine is very porous. Wipe up spills immediately.
Protect from heat and liquids.
For soil build-up, wipe hard surfaces with damp cloth and dry.
Use of coasters is recommended.