DC -- Natl Geographic Society -- Explorers Hall:
[1] NGS_180626_01.JPG
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[2] NGS_180626_07.JPG
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[3] NGS_180626_09.JPG
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[4] NGS_180626_14.JPG
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[5] NGS_180626_16.JPG
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[6] NGS_180626_19.JPG
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[7] NGS_180626_22.JPG
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[8] NGS_180626_29.JPG
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[9] NGS_180626_38.JPG
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[10] NGS_180626_40.JPG
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[11] NGS_180626_47.JPG
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[12] NGS_180626_51.JPG
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[13] NGS_180626_55.JPG
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[14] NGS_180626_56.JPG
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[15] NGS_180626_64.JPG
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[16] NGS_180626_66.JPG
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