People enjoy the nightlife of North Fourth Avenue and downtown by way of Sun Link streetcar as it passes the Rialto Theatre on East Congress Street on Saturday, July 26, 2014.

Mike Christy / Arizona Daily Star

If you want to get a feel for Tucson, hop on the Sun Link streetcar and take it from end to end.

There you will see where miracles of modern science are born at the University of Arizona, and where folks who work and study there find their release along University Boulevard’s myriad shops and restaurants.

Turn the corner onto North Fourth Avenue to find the modern adventurer, the diverse collection of artists and entrepreneurs who have carved out a distinct personality in a destination-worthy stretch of commerce and creativity.

Follow North Fourth through the underpass that spills out into the city’s ultimate entertainment district. Congress Street is bookended by history — The Rialto Theatre on the east end, Fox Tucson Theatre on the west. In between are 60-plus restaurants, unique retail shops, nightclubs and lounges and a handful of “Coming Soon” signs that let you know it’s still a work in progress.

At the end of the line is the Mercado District, home of the Mercado San Agustín and its nearly two dozen shops and restaurants, including Ryan Clark’s Agustín Kitchen.

Bring a camera. Bring a friend. And bring your sense of adventure.