U.S. News Insider Tip: Pay attention if you're in the flash flood simulation ... visit the aquarium's website. Small Group Tour of Pikes Peak and the Garden of the Gods from Denver (2511 reviews) ...

The Denver Aquarium is loads of fun, what with sunken temples, re-created flash floods and piranha tanks, but it's also pricey. Between parking fees, multiple gift shops and added activity charges ...

But there's one nearby adventure that not a lot of Denver-ites know about: shark diving. Located in the heart of the city, the Downtown Aquarium offers a surreal thrill for certified divers who ...