National monuments, perhaps surprisingly, are full of secrets! Check out this video to learn the secrets of national monuments around the world, from a hidden room in the Lincoln Memorial to the so called “Cave of Evil Spirits” near Niagara Falls. You’ll surely learn some new national monument trivia from this video!

** Please note: Due to the impact of COVID 19 on travel, we encourage people to always plan trips in accordance with the guidance provided by government and health officials.

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