A self-guided walking tour is the best way to appreciate the stunning architecture of Viana do Castelo. The buildings date from several different centuries so styles vary: highlights include the early 20th-century Basilica of Santa Luzia; the 16th-century fountain and former city hall building at the Praça da República; the gothic Cathedral on the Largo da Matriz; and the Monument to Caramuru and Paraguaçu, built just a few years ago in 2009.

Often overlooked in favor of Porto and Lisbon, Coimbra sits on the banks of the winding Mondego River. After a day spent among the city's medieval architecture and grand university buildings, it's easy to see why Coimbra was Portugal's capital for over a century.

Founded in the 15th century, Ahmedabad is the largest city in the state of Gujrat. The city is a vibrant business district and rising centre of education, information technology and scientific industries. Divided in two - the old city and the new city; The city offers different moods right from the hustle-bustle of C.G. Road in the heart of Ahmedabad to the quite retreat of of the Sabarmati Ashram. Ahmedabad enjoys a thriving cultural tradition, being the centre of Gujarati cultural activities and diverse traditions of different ethnic and religious communities. Popular celebrations and observances include Uttarayan - an annual kite-flying day on 14 January and the nine nights of Navratri - celebrated with people performing Garba - the folk dance of Gujarat - at venues across the city.

Laid out by British architect Edwin Lutyens, the Indian capital is a striking modern metropolis. A gracious contrast to Old Delhi's winding streets, the grand avenues and stately buildings of New Delhi are rich with history and culture, from Gandhi's Delhi home (and the site of his assassination) to the tomb of Humayun, a complex of Mughal buildings reminiscent of the Taj Mahal. Chaotic traffic is best left to the locals. Negotiate a good price for taxis or travel on the new Delhi Metro.