Nosy Iranja, a tropical paradise off the northwest coast of Madagascar, is a must-visit destination for travelers seeking an untouched escape. Known for its stunning natural beauty, Nosy Iranja is actually composed of two islands, Nosy Iranja Be and Nosy Iranja Kely, connected by a striking sandbar that appears at low tide. Visitors can stroll across the white sands with crystal-clear turquoise waters on either side, creating an otherworldly experience of walking between two islands.

If summer means the beach to the inhabitants of Greater Buenos Aires, Mar del Plata is most often the beach they are thinking of. Situated on the northern Atlantic coast, 400km from the capital, beaches in this area sprawl for eight km, with sophisticated mansions (reflecting the area's upper-class origins) mingling with the new middle-class resorts. Sea lions keep an eye on the fishing activities around the wharves, and a replica of the grotto of Lourdes is a kitsch paradise.

A major port city on the River Scheldt, Antwerp, Belgium, is a cultural, historical, and commercial hub and the country's most populous city. Known as the "diamond capital of the world," Antwerp is renowned for its cut diamonds.

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.

Located on the coast of Sinaloa, Mexico, Mazatlán is a trendy resort town with spectacular beaches and thrilling nightlife. Centro Histórico (Old Town) and Plazuela Machado are replete with colorful, newly-restored neoclassical buildings.