Sintra, located just 40 minutes from Lisbon, feels like a world apart. Tucked into the hills of the Serra de Sintra, this town has drawn kings, poets, and explorers for centuries. It was once the summer retreat of Portuguese royalty, who left behind palaces and gardens that seem pulled from a storybook. The most famous, Palácio da Pena, is perched high above the town with bold red and yellow towers that blend Romanticism with Moorish and Gothic styles.

Evidence of our nation's birth abounds in Boston, a hub of revolution that is essentially the oldest city in the United States. Visitors are compelled to walk the 2.5-mile Freedom Trail around the city center, and bear witness to 16 historical locations related to the history of America.

California is a destination that offers an unparalleled variety of experiences, making it one of the most visited states in the U.S. From the snow-capped peaks of the Sierra Nevada to the sun-kissed beaches of San Diego, California's diverse landscapes cater to all kinds of outdoor enthusiasts, offering endless opportunities for hiking, surfing, skiing, and more.

Framed by an array of tropical flowers, "miniature" houses painted in a pastel palette will enchant you. But, a splash of watercolors is all you'll see as you zip by on a moped. It won't be long before you find the perfect spot for a beach picnic and afternoon of snorkeling.

Set along the Seine, Caudebec-en-Caux is notable for its dramatic Notre-Dame church and Maison des Templier (The Templars' House).