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.

Montenegro, set along the Adriatic Sea, draws travelers with its dramatic landscapes and layered history. The Bay of Kotor, often mistaken for a fjord, is actually a submerged river canyon surrounded by steep cliffs and medieval towns. Kotor itself, a UNESCO World Heritage site, is enclosed by ancient fortifications that visitors can climb for panoramic views stretching from terracotta rooftops to the sea.

Hammerfest, located above the Arctic Circle in northern Norway, is one of the northernmost towns in the world with a population of over 10,000. It’s a place where the midnight sun shines from mid-May to late July, and the polar night sets in from late November to mid-January. Historically a hub for Arctic hunting and fishing, Hammerfest was also the first town in Northern Europe to install electric streetlights in 1891.

Sunshine, cars, celebrities... these are just a few of the things that define Los Angeles. But as any visitor to this expansive Southern California city will tell you, it's a place with seemingly infinite possibilities. There's downtown, with Crypto.com Arena, Walt Disney Concert Hall, and Olvera Street. There's Hollywood, with its Walk of Fame, maps to the stars' homes and palm-tree lined boulevards. There's Santa Monica, with its pier, shopping and ocean breezes.

Located on the Rhône River, Avignon is the city to which the Popes fled when leaving the corruption of Rome in the 14th century. The palace they built, 'Le Palais des Papes,' is a breathtaking must see.