Most of Yellowstone National Park may be closed for the winter, but that doesn't mean the job of preserving the Park's historic buildings ends. Here's a look at how restoration efforts go on in the offseason.

Though it may not be apparent, these spaces -- including the ones closed to the general public -- undergo regular maintenance. That's the case this offseason, as 187 gothic-style pendant luminaires (were removed from Geyser Hall in November and transported some 2,400 miles to Connecticut, where Grand Light is restoring them.

The lights will be stripped down to base components and rewired. Amber glass that can be reused will be reinstalled; new matching glass will go in where needed.

When you visit Yellowstone next summer, make a point of looking at the restored lights at Geyser Hall: this sort of historic restoration surely isn't the most glamorous of tasks, but it's the kind that keep the Park going.

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