Learn about Sin City's past, one of the most fascinating in the US, at the Mob Museum before seeing old casino signs at the Neon Museum and lunch on Fremont Street. If the Neon Museum is closed, visit the Las Vegas Natural History Museum.

Head to the Clark County Museum in Henderson to see the Exhibit Hall of Las Vegas History and Heritage Street. Explore 8 historic homes, an outdoor ghost town, old trains, a physical timeline of Nevada's history, and the Candlelight Wedding Chapel, once set on the Strip.

At the Mob Museum get a sense of the mob's early days in Chicago to modern day counterfeiters. See an array of memorabilia—like the original Saint Valentine's Day Massacre wall, complete with bullet holes, and the chair Albert Anastasia was assassinated in—and hear how notorious mobster Benjamin "Bugsy" Siegel built the Flamingo Hotel and paid the price.

Then, visit The Neon Museum and Boneyard, an outdoor museum with 120 iconic signs from Sin City's storied past. Stop at the visitor's center in the rehabilitated La Concha Motel lobby, saved from demolition in 2005.

If the Neon Museum is closed, head to the Las Vegas Natural History Museum to see a woolly mammoth tooth, a shark jaw bone, lifelike replicas of extinct animals, and Treasures of Egypt, an exhibit with replicas of Egyptian artifacts like King Tut's golden throne and chariots. At your last stop, have lunch as you gaze over a 90-foot (27-m) canopy stretching 1,400 feet (427 m) long above legendary Fremont Street, where Vegas began.