Denver Union Station
Union Station, like Uma Thurman, may have undergone a few nips and tucks recently, but that hasn’t compromised its Beaux Arts facade, which was built in 1914. Today, the station’s most striking features include its exposed Train Hall (made of 11 steel arches), a 112-room boutique hotel, a slew of restaurants, shops, and bars, and over 600 works of art on display throughout. And if that's not enough, there's even a 22-gate underground bus concourse lit by skylights. Okay, that was probably enough.