GCP Enterprise Hybrid Cloud Landing Zone with dual-region Dedicated Interconnect from Madrid and Barcelona on-premises datacenters, featuring Network Connectivity Center hub-and-spoke topology with HA VPN overlay and BGP dynamic routing. Traffic from six production and non-production DMZ and mid-tier Shared VPCs flows through active-active Palo Alto VM-Series firewall pairs in a dedicated Security Inspection Zone, with Cloud Armor WAF and Cloud CDN protecting external ingress. Shared Services Zone provides centralized DNS (Cloud DNS + Infoblox active-active), Cloud NAT, Cloud IAM, Cloud KMS, and Security Command Center for compliance and observability across the 10.0.0.0/8 enterprise network. This architecture demonstrates Google Cloud best practices for zero-trust security, multi-region resilience, and least-privilege access in regulated environments. Fork this diagram on Diagrams.so to customize VPC CIDR ranges, add additional regions, or integrate with your existing Terraform modules and GitOps workflows.