7 days in Denver & Gaithersburg Itinerary

Aptly nicknamed the "Mile-High City," Denver sits at an altitude of 1,600 m (5,280 ft) above sea level, located right where the Great Plains give way to the Rocky Mountains.

Go for a jaunt from Denver to Boulder to see Flatirons about 34 minutes away. Next up on the itinerary: take in nature's colorful creations at Denver Botanic Gardens, admire the masterpieces at Denver Art Museum, look for gifts at Dardano's Shoes, and get to know the resident critters at Denver Zoo.

To find photos, other places to visit, where to stay, and more tourist information, go to the Denver day trip tool.

Philadelphia to Denver is an approximately 7-hour flight. You can also drive; or do a combination of train and subway. The time zone changes from Eastern Standard Time (EST) to Mountain Standard Time (MST), which is usually a -2 hour difference. Traveling from Philadelphia in October, you can expect nighttime temperatures to be a bit cooler in Denver, with lows of 40°F. Finish your sightseeing early on the 26th (Thu) so you can travel to Gaithersburg.

Gaithersburg, officially the City of Gaithersburg, is a city in Montgomery County, Maryland. Start off your visit on the 27th (Fri): examine the collection at Steven F. Udvar-Hazy Center, admire the natural beauty at Meadowlark Botanical Garden, and then have some family-friendly fun at Gaithersburg Miniature Golf. Get ready for a full day of sightseeing on the next day: take in the waterfront activity at Harborfront Area and then examine the collection at George Washington's Mount Vernon.

To find other places to visit, ratings, maps, and other tourist information, use the Gaithersburg planner.

Explore your travel options from Denver to Gaithersburg with the Route module. The time zone difference moving from Mountain Standard Time (MST) to Eastern Standard Time (EST) is 2 hours. Traveling from Denver in October, Gaithersburg is a bit warmer at night with lows of 47°F. Wrap up your sightseeing on the 28th (Sat) early enough to travel back home.