| 31. | The cylindrical columns also consist of alternate rows of travertine and basalt.
|
| 32. | The building has travertine flooring and is Energy Star labelled.
|
| 33. | The facade made of brick and travertine features three doors.
|
| 34. | The floor is covered with travertine marble trimmed in green Maryland marble.
|
| 35. | The walls are plastered to look like travertine ashlar masonry.
|
| 36. | Springs might potentially be rising springs forming a travertine deposit.
|
| 37. | Some maars contain sediments including travertine possibly related to carbon dioxide emissions.
|
| 38. | Trails to reputedly the world's largest travertine bridge have been improved.
|
| 39. | The travertine rock formations are created by the waterfall.
|
| 40. | The buildings and the plaza are faced with off-white travertine marble.
|
