The gold dome gleams over downtown Denver, marking Colorado's seat of government and the exact mile-high elevation. Free tours explore the building's history and architecture, and the 93-step dome climb rewards you with 360-degree city and mountain views.
Colorado State Capitol
Stand Exactly One Mile High
What to See
Mile High Marker: The 15th step on the west entrance is engraved with "One Mile Above Sea Level" at exactly 5,280 feet. The original 1909 marker was moved after surveyors recalculated - look for multiple markers on different steps.
Gold Dome: Covered in 200 ounces of gold leaf from Colorado mines. The interior rotunda is impressive, and the dome climb offers the best views in the city.
House & Senate Chambers: Tours visit both legislative chambers when not in session. Beautiful stained glass and woodwork throughout.
Visiting Tips
Free tours run hourly from 10am-3pm on weekdays. No reservations needed for groups under 10. Arrive early during summer.
The dome climb is worth the 93 steps. Check ahead as it closes for weather and maintenance.
Pro Tip: Combine with a walk through Civic Center Park and the Denver Art Museum across the street. All three are within a 5-minute walk.