- Main Line: (630) 293-2233
- For event inquiries and reservations, call during business hours
- Leave a detailed message if unable to reach staff immediately
- Guest lists available upon request
- Advance notice required (24-48 hours recommended)
- Valid photo ID required at entry
- Call venue to confirm will-call arrangements before arrival
- Names must be provided to venue staff prior to event date
- Free on-site parking available
- Ample lot accommodates standard vehicles
- Street parking also available in surrounding area
- Well-lit parking areas for evening visitors
- ADA accessible parking spaces designated
- ADA compliant accessible entrances available
- Wheelchair accessible restrooms on premises
- Accessible seating areas throughout venue
- Staff available to assist guests with mobility needs
- Contact venue in advance for specific accessibility requirements
- Valid photo ID required for entry
- Dress code enforced (no athletic wear, tank tops, or flip-flops)
- No outside food or beverages permitted
- Respect other patrons and staff at all times
- Venue reserves right to refuse service
- No smoking indoors (outdoor smoking area available)
- 18+ required for general admission
- 21+ required for alcoholic beverage consumption
- Valid ID required to prove age
- No unattended minors permitted
- Special all-ages events may be scheduled; call for information
The Prince George's County Council in Maryland has given final approval for the construction of the new mini Sphere at National Harbor.National Harbor Sphere Gains Final Approval, Targets Early 2030 Opening Alex Young
Oct 28, 2026