Visitors to Denver often climb the steps of the Capitol to take in the view of the mountains.

"That is exactly why this is a great place for a view plane, to protect that view forever," Brad Buchanon says, outside of the building. He's a planning director with the City of Denver.

With all of the buildings going up around here, careful thought goes into protecting those majestic views. Some sight lines are obstructed, sure, but some aren't. Denver's community planning and development board has set aside 15 different preserve sights, from the 1950's through 2009.

"We're a growing state and a growing region. The pressures of development might make some say, will that impact our views? That's the purpose of the view planes," Buchanan said.

The city has rules about how high buildings can be in certain Denver neighborhoods. The first view plane was set aside in 1950. The last one, Coors Field, in 2009. The idea is to preserve the view of the mountains from vantage points in the metro area.

Basically, it means the views of the mountains you see from Wash Park will be there for a long time.

"Most of our view planes originate in parks and in public gathering places, like the State Capitol or City Park, where we can all be together and most folks can enjoy that precious and cherished asset of the Rocky Mountains," Buchanan said.

So, when you're free, maybe take some time to enjoy the view of the mountains, and the buildings that aren't in Denver's view planes.

Here's a list of the specific angles to best see the views from each of the 15 planes. of the view planes,

Map: Denver view plane locations