The prophet Mohammed's birthplace is Islam's spiritual center and is strictly off-limits to non-Muslims. The pillars of Islam state that all Muslims with the means must undertake Hajj, a pilgrimage to Mecca, once in their lifetime. Those who visit the holy city are rewarded not just by proximity to landmarks and religious sites crucial to the religion, such as the Masjid Al Haram (Holy Mosque), the Mountain of Light, the Black Stone and the Well of Zamzam, but with the forgiveness of all their sins.

Bangkok is full of exquisitely decorated Buddhist temples—as you go from one to the next you’ll be continually blown away by the craftsmanship and elabourate details. But if you’d rather seek enlightenment in a gourmet meal, or dance the night away, you’ll also enjoy Bangkok—the restaurant and nightclub scenes here are among the best in the world.

Shanghai is the cool, confident face of modern China, and its energy is infectious. Go to the Bund to watch ships on the river and marvel at the huge variety of architectural styles on display, or watch the crowds go by in People’s Square. Shoppers should make a beeline for the Fabric Market, where you can have a suit or dress tailor-made for you at bargain prices. At night, explore all manner of fashionable restaurants, bars and nightclubs or just stroll through the city enjoying the spectacular neon lights.

Forested hills, romantic white-sand beaches and crystal-clear waters greet visitors to tropical Palau Langkawi, the largest of the 99 islands in Langkawi archipelago. Known mysteriously as "Legendary Island" because of myths associated with its ancient geological formations, it drifts serenely alongside Malaysia in the azure Andaman Sea. Sample local cuisine at the night markets, hike to dramatic waterfalls or dive into an underwater marine park to take a guided glimpse at life beneath the sea.

Famed throughout Asia for its heady mix of eastern cultures, Penang Island is Malaysia’s prime melting pot. Roadside vendors serve some of the world’s best street food; its national parks offer white-sand beaches and wildlife; and UNESCO-listed George Town is full of colorful heritage houses.

The British colonial city of Ipoh had humble beginnings, but has blossomed into a beautiful cityscape that marries old-world charm with modern amenities. This is a foodie's city, offering endless street stalls and restaurants all eager to serve up a sample of mouthwatering local fare. Walk it all off on a jaunt through breathtaking limestone caves that seem carved by the capable hands of a higher power.

Breathe deep in Genting Highlands where, unlike nearby Kuala Lumpur, the air is fresh and clean. Aside from its resort life, visitors flock to hill station to enjoy cooler temperatures, mountain scenery, strawberry farms, and a relatively undisturbed, natural rain forest.

The cultural hub of Malaysia, Kuala Lumpur is visually defined by the iconic Petronas Twin Towers, which, at 88 stories high, are the tallest twin buildings in the world and a vision of modern architecture. On the flip side, the Sri Mahamariamman is the oldest Hindu temple in Malaysia, its façade a colorful totem pole of iconography. Shopping at the Central Market is a joyful experience that involves haggling, handicrafts, and happiness.

This charming city is a UNESCO world heritage site, with a rich trading history and multicultural heritage. Melaka is a rewarding town to explore and is about two hours from Kuala Lumpur.