Crumbling roads and bridges in a steady state of decay can be found around the National Park System as maintenance issues go years without significant attention.

Heavily forested Prince William Forest Park took it on the proverbial chin during last weekend's winter storm, with gusting winds downing hundreds of trees. Crews have cleared more than 600 fallen and hazardous trees in the days following that storm. Late this week employees continued to clear damaged trees and debris, restore downed power lines, and repair damaged historic buildings across the park.

There are some historic features in the National Park System we just can't walk through in person, such as the remains of the Civil War gunboat USS Cairo at Vicksburg National Military Park. Now, thanks to some high-tech wizardry, anyone can take an animated "fly-through" and explore the interior of the ship—or five other historic locations around the country.