Question is really simple, Where we can check in the VPC to find internet-facing resources?
There are 1 VPC and it has couple private subnets where EC2 instances are in (with security groups attached), couple public subnets where NAT gateways are in (with EIP addresses attached) and each subnets has its own route table.
Note that there are 1 Internet gateway and 1 Virtual private gateway attached to VPC.