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4) Washington Monument (4 of 10)
4) Washington Monument (4 of 10)
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Do not forget to take your children to the Washington Monument, which is basically a tribute to George Washington. The monument reaches a height of 555 feet and has the privilege of being the tallest stone building in the world. You should know that here is a long line of people who want to visit the museum, as it is visited by more than 800,000 people every year. Avoid the place during the peak tourist season or take your family early in the morning.