It’s one of the most popular and iconic destinations in both the United States and Canada, but you may not know all of these facts about Niagara Falls.

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From mushroom farms to spas to amusement parks, these mines have had a second life.
Biking is a great way to stay active and reduce your carbon footprint. Here are some cities that are actively encouraging this green mode of transportation.
14. Get your waltz on at one of the more than 450 balls taking place in the Austrian city annually.
17. There aren't any McDonald's restaurants in the country—but a six-year-old Mickey D's cheeseburger is kept, under glass, at a Reykjavik hostel.
Impress your favorite Cheesehead (or Badger!) with these bits of trivia.
The new leader of the pack? Germany's passport, which allows citizens to enter 177 countries and territories without a visa.
15. In 1949, residents of Mole Hill, West Virginia, changed the name of their town to “Mountain.” Get it?
10. Before her wedding to Prince Rainier III, Grace Kelly's family had to pony up a whopping $2 million dowry to the royal family.
When researchers layered New York City’s bus map atop its subway map, they found that the number of connections reached 8,461, exceeding the standard cognitive threshold dramatically.
And it does it without using GPS data.
The Royal Cave Temple was carved into the side of a mountain during the Tang dynasty.