There are many treasures to be seen in the legendary towns of Luján and Capilla del Señor, just northwest of the capital. The grid-patterned streets of both are lined with fine colonial houses. In Luján, you can visit an enormous neo-Gothic basilica with soaring twin spires. A well-known pilgrimage site, it draws 6 million worshippers a year. Capilla del Señor, which has been granted landmark-protection status, has a shaded plaza, an old-fashioned train station and historic bridges that span a narrow river.