Red Rocks Park and Amphitheatre: More than 250 million years in the making, Red Rocks Park and Amphitheatre features natural acoustics for outdoor concerts and spectacular views for hiking trails.
Butterfly pavilion and insect center: One of the most unique "wild Denver" spots can be found just a few miles from downtown Denver at the 30,000-square-foot Butterfly Pavilion in Westminster.
This amazing attraction combines science education with hands-on fun to teach visitors about invertebrates, science and conservation.
Denver Art Museum: The Denver Art Museum opened its sleek new wing, the Hamilton Building. The spare, modern space contrasts with the medieval fortress of the old museum, now referred to as the North Building.
16th Street Mall: Take a stroll through Denver's 16th Street Mall, an outdoor shopping and dining center in the Mile High City. Dozens of restaurants and boutiques join chain stores.
The Denver Zoo: Covers 80 acres in City Park, and more than 1.6 million people visit each year. Today, the zoo houses almost 4,000 animals from across the world.
Source: http://www.denver.org/