| 41. | Once inside, the newcomer is quickly lost among blank walls of travertine.
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| 42. | Building materials mainly include travertine, crushed stones, asphalt and asphalt concrete.
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| 43. | Another travertine resource is in Sulphur, Oklahoma, east of Turner Falls.
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| 44. | There are numerous smaller cataracts formed by travertine dams.
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| 45. | Depending on various species, various biological types of travertine can be differentiated.
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| 46. | Older travertine is filled with fossilized algae and mosses.
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| 47. | The entire building rests on a plinth of travertine.
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| 48. | The interior lobby area contains broad staircases and is constructed of travertine marble.
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| 49. | Travertine for use in building has been worked on a minor scale nearby.
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| 50. | The atrium floor is of marble and its walls are of travertine marble.
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