Tucked between Jordan's sandstone cliffs in the southwestern desert, Petra was carved directly into rose-colored rock more than 2,000 years ago. Visitors approaching through the narrow gorge known as the Siq are rewarded with their first glimpse of Al-Khazneh, the Treasury, a towering facade that seems to appear from another world.

The largest Pacific seaport in Guatemala, Puerto Quetzal is also the gateway to Antigua, a well-preserved colonial city.

Originating as a tiny fishing village in 1038, modern Kehl has become an important link between Germany and France. Rhine River cruises most often use Kehl as their gateway to the much larger and better-known Strasbourg. The savvy traveler, though, might choose to skip the jaunt across the river and enjoy many similar sights, shopping and cuisine as those offered in the teeming French city.

Madeira, an archipelago off the coast of Portugal, is often referred to as the “Island of Eternal Spring” due to its mild climate and lush landscapes. Funchal, its vibrant capital, is a perfect blend of natural beauty and rich history. Visitors can explore the cobblestone streets of the old town, marvel at the Gothic-style Sé Cathedral, and stroll through the colorful Mercado dos Lavradores, where local farmers sell fresh produce, exotic flowers, and the island’s famous wine.

Santa Monica, California, a gem on the Pacific coast, offers a quintessential Southern California experience. The city is renowned for its iconic Santa Monica Pier, which features an amusement park, aquarium, and family-friendly dining. A ride on the historic Ferris wheel provides stunning ocean views and a sense of nostalgia.