One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

These naturally balancing rocks were pictured on every Zimbabwean banknote, up to the 100 trillion-dollar note.

The largest prehistoric ruins south of the Sahara, once a powerful center of international trade.

This church in Old Goa was established by eight Portuguese Franciscan friars who landed there in 1517.

Every year, massive crowds flock to this 300-year-old temple to celebrate a unique, goddess-centric Hindu festival.

A monument to the British doctor who connected mosquitoes to malaria.

A magical expanse of colorful street murals lies hidden within the quiet neighborhood.

For just a few hours each morning, this market serves specialties from the city's shrinking Chinese-Indian community.

The world's largest secondhand book market is a haven for bibliophiles and bargain hunters.