With 28 centuries of celebrated history, Rome holds the edge when it comes to unrivalled adventures. The city that sparked the world’s largest empire is very much alive today with a jumble of ancient ruins, world-renowned art and vivacious street culture. Here you can live 'la dolce vita', recalling the glory days of Ancient Rome and twirling forks full of pasta in a trattoria. Ride past centuries-old basilicas in a three-wheeled Ape Calessino, or stand in awe of paintings by Italian masters at Villa Borghese. Whether it’s Vatican City’s spiritual allure, Trastevere’s backstreet charms or the Colosseum’s embattled legacy – The Eternal City endures with endless adventures.

Cartagena greets you with its ancient Mediterranean port on Spain's southeastern coast. Originally governed by the Carthaginians and subsequently by the Romans, Arabs and Castilians, this pedestrian-friendly city is a history buff's dream port. Visit the 2,000-year-old Roman Theatre and the attached museum, where you'll find an ancient altar to Jupiter and a statue of Apollo. Then, check out the late 19th-century modernist architecture of Cartagena's historic center. Cruises to Cartagena, Spain allow you to stroll down blue-marble-tiled pedestrian-only Calle Mayor. Or take the 30-minute drive to the Batteria de Castillitos, a medieval-style fortress situated among the picturesque mountain landscape.

Lisbon is a quintessential European city, full of natural beauty, historic architecture and culinary pleasures — not to mention one of the best climates anywhere on the planet. To get to know Portugal's capital, walk between the captivating miradouros — terrace viewpoints that are scattered on the hilltops, offering stunning vistas from the sea to the castles and beyond. Watch as the light peeks through the clouds and shines down on The City of Seven Hills during your cruise to Lisbon. If you're a history buff, head to Belem or nearby Sintra to explore UNESCO World Heritage Sites like the Jeronimos Monastery and Quinta da Regalaira.

Nicknamed the Green Island, Ponta Delgada is full of lush natural wonders, 16th-century architecture and mini-expeditions. When you arrive at the Azorean capital, situated on the south coast of the island Sao Miguel, wander around the old town to snap photos of monuments that cover postcards, traditional Portuguese churches and old forts. Venture further out of the city to take in the stunning views of Lagoa das Sete Cidades, a pair of lakes nestled in the crater of a dormant volcano. Or embark on an afternoon on the water to catch sight of the whales and dolphins that gather in the sea.

HMD Bermuda was the principal base of the Royal Navy in the Western Atlantic between American independence and the Cold War. Bermuda had occupied a useful position astride the homeward leg taken by many European vessels from the New World since before its settlement by England in 1609.

While in Tampa, be sure to stroll through the historic Ybor City, full of restaurants, shops and bars, visit the Busch Gardens theme park or explore the Salvador Dali Museum in St. Petersburg. This metropolis never stands still.