From Denver: Coming from either direction on I-25, take the 20th Street Exit. Go east on 20th Street to Arapahoe. Take a right on Arapahoe and immediately get into the left hand lane. After you pass 19th Street, you will see the entrance down to the parking garage. Acquire a parking ticket and park in any spot that is not reserved. Take the first elevator up to the street level (ST), then take the second set of elevators up to the 16th floor.