Credit:
Columbarium cave: By Danny-w, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0/, https://commons.wikimedia.org/w/index.php?curid=36355059
CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0:
Ponta Delgada: By Torbenbrinker, https://commons.wikimedia.org/w/index.php?curid=50639959
Cromlech: By RobinLeicester, https://commons.wikimedia.org/w/index.php?curid=54494448
Dolmen: By Fernando Losada Rodríguez, https://commons.wikimedia.org/w/index.php?curid=33991173
The Strubben-Kniphorstbos: By Agnes Monkelbaan, https://commons.wikimedia.org/w/index.php?curid=60628502
Stone anchor: By Zde, https://commons.wikimedia.org/w/index.php?curid=86972669
Arsameia: By Carole Raddato – https://flic.kr/p/XFxUc1, CC BY-SA 2.0 https://creativecommons.org/licenses/by-sa/2.0, https://commons.wikimedia.org/w/index.php?curid=74907649
Animation is created by Bright Side.
アニメーションはブライトサイドにより作成されています。
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ブライトサイドのチャンネル登録 https://goo.gl/31w525
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https://www.shutterstock.com
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