The Chautauqua Auditorium is an all-wood structure built in 1898. In the evening, when the Colorado Music Festival musicians stop playing, you can often hear owls hooting along with the music.

Boulder has more used bookstores per capita than any other city in the country.

The Flatiron Mountains got their names by the pioneer women who said they looked like the flat, metal irons they used to iron their clothes.

Flagstaff Mountain was named for the flagpole that sits on top of the summit, which was visible when Boulder was first settled, as it was a completely treeless plain.

Scott Carpenter, a NASA astronaut, grew up in Boulder. He named his space capsule after his home on Aurora and 7th. The capsule was Aurora 7.

The University of Colorado at Boulder buildings are built with red sandstone, which is quarried in the nearby town of Lyons.

With Coors, Anheuser-Busch and all the local micro breweries, this area has become the largest beer-producing triangle in the world.

Boulder is going to the dogs! On recent visitor counts to Boulder Mountain Parks, they found a ratio of 1 dog to every 5 visitors.