You can wander in and out of 14 buildings that make up Fort Mackinac.

Fort Mackinac in Upper Peninsula Michigan

Whitewashed Fort Mackinac is worth a visit for the views alone, presiding over—as forts often do—the downtown, the marina, and Lake Huron. But there’s also plenty of exploring to do at this military outpost with its costumed guides and historic reenactments.

Directional signs in Old Town, San Diego.

Sightseeing Old Town San Diego and Mission Hills

Sightseeing in Old Town San Diego and Mission Hills is a historical and architectural feast. From the city’s first graveyard to a two-century old home and plenty in between, you can easily spend an entire day strolling through San Diego’s history.

A striped orange and white nautilus at the Monterey Bay Aquarium.

What to See in Monterey, California

The best days in Monterey are picture perfect: It’s no wonder that so many artists have been inspired to paint this land- and seascape. Here are recommended sights including the must-see Monterey Bay Aquarium.