Originally built in 1991, the Sands Expo has been a central part of the Las Vegas convention market for more than two decades.

In June 2010, the Schultz fire tore through northern Arizona, charring more than 15,000 acres, forcing the closure of several monuments and leading to the evacuation of hundreds of homes.

For more than 45 years, the city of Albuquerque had two high school athletic stadiums. But as the area and district has matured with the addition of two new high schools since Milne and Wilson stadiums were built, scheduling events and overuse took a toll.

Before the completion of the $5.4-million Bear Canyon Arroyo bicycle and pedestrian bridge, Albuquerque did not have a dedicated crossing over Interstate 25 for non-motorized traffic in the northern half of the city, and the arterial streets crossing I-25 at the interchanges were not particularly bicycle-friendly or safe.

The Chino Valley Solar Project provides 21 megawatts of power for Arizona Public Service customers, generated by more than 77,000 photovoltaic modules outfitted with a single-axis tracking system.

A $55-million restoration of the historic Pinal County courthouse in Florence, Ariz., has transformed the once-shuttered, two-story, 24,000-sq-ft structure back into a community icon.

The new home of the The New Mexico Consortium, a nonprofit corporation formed by three New Mexico research universities to support the Los Alamos National Laboratory, includes a greenhouse, offices, laboratory and flexible space for a plant biology initiative that performs basic research on sustainable energy production, food security and ecological change.

The recently completed Sonoran Boulevard is 7.5 miles of new roadway constructed across portions of Arizona state land and within Phoenix's Sonoran Park Preserve.

The Landscape Evolution Laboratory will allow scientists at the Biosphere 2 research facility to study how water moves through mountain landscapes and how ecology and landscapes co-evolve.

Originally constructed in 1916, the former Ajo Train Depot underwent a building assessment in 2008 that determined the 2,080-sq-ft masonry and stucco structure was in need of substantial repairs and upgrades.