Whether you're seeking fresh air, exercise, or an educational outing, the U.S. National Park Service has you covered. With a presence in all 50 states, the National Park Service comprises 401 monuments, parks, historical points of interest, battlefields, scenic trails, and of course, the White House.

Curious what national parks exist near you? The U.S. National Park Service hosts an interactive park map on its website. You can search parks by activity, name, location, and topic, or if you prefer, you can simply click your state to browse national park sites in your area. Clicking your state will lead you to an interesting "By the Numbers" feature that lists your state's total number of parks, plus statistical data regarding visitors and tourist dollars from the previous fiscal year.

For supplementary info, visit the National Parks Conservation Association's website to find a similar map.

Find a Park [National Park Service]
Exploring Our Parks [National Parks Conservation Association]

CC-BY-2.0/Flickr/Dave Catchpole

An unfortunate side effect of travel, jet lag can easily suck the fun out of the first few days in a new time zone. Whether you're planning on traveling to a new city for business or pleasure, these three tips will help expedite your acclimation.

1. Ease your body into the time zone of the city you'll be visiting.
Take a week or so before your departure to incrementally shift your sleep schedule so that upon arriving in your destination, your circadian rhythm is already in sync. Go to bed earlier for an eastward trip, later for a westward trip. If you'll be traversing multiple time zones, you may want to consider breaking up your travel into smaller flights.

2. Get outdoors.
Staying inside only worsens jet lag. Being exposed to sunlight will help stimulate a correction of your biological clock. Try taking a short walk to clear your head.

3. Stay hydrated.
Once you're in the air, drink eight ounces of water per hour. This will help curtail the dehydrating effects of cabin air. You may be tempted to reach for a cocktail, but be forewarned that alcohol worses jet lag. Avoid caffeine, as well, as it acts as a stimulant and may prevent restful sleep.

Jet Lag [Centers for Disease Control and Prevention]
Jet Lag and Sleep [National Sleep Foundation]
Avoid Jet Lag with our Top 10 Tips [Fodors]

Lacrosse is viewed as one of the most distinguished sports in our country, with teams for adults and children of all ages and even Major League Lacrosse. If you’re a player or a fan of lacrosse who wants to stay informed about your favorite sport, these great websites for lacrosse enthusiasts can help.

U.S. Lacrosse
U.S. Lacrosse is made up of the men’s, women’s, and under-19 teams with the best lacrosse players in the nation. Players, coaches, and fans can become members of the organization to receive information and benefits about the sport, and visitors will enjoy reading about lacrosse events and participants from U.S. Lacrosse.

Major League Lacrosse
The Major League Lacrosse website provides up-to-date information about the league’s eight teams across the U.S. and Canada, as well as player and game coverage throughout the season. The website includes a photo gallery, videos of game footage, a TV guide describing where to watch lacrosse, and in-depth stats about Major League Lacrosse.

Lacrosse magazine
Lacrosse magazine covers college men’s and women’s lacrosse, high school lacrosse, Team USA, Major League Lacrosse, and the National Lacrosse League. On the website, you’ll find tips for players and coaches, headlines describing the latest lacrosse news, and high-quality images and videos of the best lacrosse game footage.

CC-BY-SA-2.0/Flickr/bburky