At more than 7,000 feet above sea level in the Andes Mountains, this symbol of the Incan Empire was designated a UNESCO World Heritage Site in 1983 and was named one of the New Seven Wonders of the World in 2007.

Puerto Rico is a colorful and invincible archipelago. This U.S. territory, irrevocably shaped by colonialism and dramatic weather events, is awash in culture, with much to be learned in its art galleries and its centuries-old citadels. Capital city San Juan is the largest city and tourism hub. Visitors should see Old San Juan, the inviting beaches, and Museo de Arte de Ponce, among the finest art museums in the Caribbean.

This small yet charming city in Alaska's panhandle is a throwback to the gold rush era. Skagway is a well-preserved part of Klondike Gold Rush National Historical Park.

Whittier is the perfect place to explore Alaska's natural beauty, providing access to nearby Emerald Cove Trail and Portage Pass Trail as well as Chugach State Park further northwest.

Haines is a charming stop in the Alaska Panhandle and a gateway to Glacier Bay National Park and Tongass National Forest.