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Downtown buildings are reflected in the newly build Wilshire Grand Center in Los Angeles on Thursday, June 22, 2017. The 73-story, 1,100-foot-high (335.3 meters) Wilshire Grand Center, the tallest building west of the Mississippi, opens Friday, celebrating with lights and fanfare in a once-stodgy downtown that has erupted in new skyscrapers. (AP Photo/Richard Vogel)
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The Latest: Tallest building west of Mississippi River open

Downtown buildings are reflected in the newly build Wilshire Grand Center in Los Angeles on Thursday, June 22, 2017. The 73-story, 1,100-foot-high (335.3 meters) Wilshire Grand Center, the tallest building west of the Mississippi, opens Friday, celebrating with lights and fanfare in a once-stodgy downtown that has erupted in new skyscrapers. (AP Photo/Richard Vogel)

LOS ANGELES (AP) — 5 p.m.

The tallest building west of the Mississippi River has opened its doors in downtown Los Angeles.

A ribbon-cutting was held Friday for the Wilshire Grand Center. Including a decorative spire, it’s 1,100 feet tall.

That’s about 80 feet higher than the nearby U.S. Bank Tower, which held the title since 1989.

The $1.2 billion tower is 73 stories of restaurants, hotel, commercial and office space. It’s part of a building boom in downtown L.A., where about 20 high-rises are in the works.

The tower also is the first modern high-rise in LA without a flat roof. For decades, the city required emergency helipads, but the builders got permission to use updated fire and escape systems instead.

The tower top is a huge sail-shaped crown that can provide LED light shows.

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