Titanic survivor "The Unsinkable" Molly Brown's Denver home. Or stop by The Brown Palace Hotel to check out the beautiful architecture and have tea or a bite to eat.
There is plenty of hiking available in and around Denver. Red Rocks, Waterton Canyon, Castlewood Canyon, Highline Canal, Cherry Creek State Park, Golden Gate State Park, and Garden of the Gods all have amazing trails.
Stanley Marketplace Union Station Cherry Creek Mall
There are lots of great restaurants in and around Denver. A couple unique to Denver are: D Bar Bakery & Cafe - Central Park Denver Biscuit Company (multiple locations)
If you want to drive about an hour into the mountains, this is a great Colorado mining town to explore. Activities in the area include: Argo Gold Mine & Mill Tour, Ziplining, White Water Rafting, Indian Hot Springs, St. Mary's Glacier, Tommyknocker Brewery, Beau Jo's Pizza (Save your crust and dip it in the honey for dessert!)