Centennial Olympic Park was built for the 1996 Summer Olympics, but today, it’s a central gathering spot in downtown Atlanta. It’s a great place to take a break while exploring the city, with wide green spaces, walking paths, and the famous Fountain of Rings, where kids (and sometimes adults) cool off in the synchronized water jets. The park also hosts concerts and events throughout the year, so check the calendar if you’re in town. It’s also close to major attractions like the Georgia Aquarium and the World of Coca-Cola, making it an easy stop while sightseeing.

This observatory, museum and educational and cultural center is dedicated to the study of the stars and the galaxy, as well as the cultural and historical importance of nearby Mauna Kea. It features interactive exhibits, shows and events.

Hilo is a region of Hawaii known for its dramatic waterfalls, fertile rainforests, blooming gardens and its geographic inverse of the volcanic Kohala Coast. Hilo is also the gateway to Hawaii Volcanoes National Park, located 45 minutes south. You'll find plenty to do with a collection of renowned museums, art galleries, unique shops and everlasting favorites like the Hilo Farmers Market.

One of only three royal palaces in the entire United States, this former residence dates back to 1838, and once served as King David Kalakaua's summer palace. The elegant gardens, the vintage koa furniture, the Hawaiian quilts, and the whole of the decor are a page out of Hawaiian history.