Pacific coast Mexican state highlighted by the popular city of Acapulco, with its vibrant nightlife and beaches.

Pushkar, a small town in the state of Rajasthan, India, is a unique blend of spirituality, culture, and natural beauty. Nestled around the serene Pushkar Lake, this holy town is a major pilgrimage site for Hindus, home to the rare Brahma Temple, one of the very few in the world dedicated to Lord Brahma, the creator god in Hinduism. The temple's striking architecture, with its red spire and intricate marble carvings, draws thousands of devotees and curious travelers alike.

The Cook Islands, a group of 15 islands scattered across the South Pacific, offer a rare blend of Polynesian tradition and laid-back island charm. Rarotonga, the largest and most visited island, is ringed by a turquoise lagoon and backed by lush mountains. Visitors can circle the entire island in under an hour, stopping along the way for fresh coconut, beachside cafés, or a quick swim in the clear lagoon.

Travelers on the Arabian Sea often find themselves in Muscat, on the Gulf of Oman. This port capital is situated between ocean and mountains, and boasts lovely beaches, great diving sites (watch for turtles!), 16th-century forts, and the impressive Sultan Qaboos Grand Mosque, which can hold 20,000 people.

Serbia is a country where centuries-old monasteries sit just a short drive from lively cities, and where the past is never far from daily life. In Belgrade, the capital, Kalemegdan Fortress offers panoramic views where the Danube meets the Sava River. This fortress has witnessed more than 100 battles and been rebuilt many times over two millennia. Within its walls are Roman ruins, an open-air military museum, and quiet park paths perfect for wandering between centuries of layered history.