In this talk, I will review our recent activities with our collaborators on designing and fabricating various superconducting circuits for scalable quantum information processing. In particular, I will introduce a superconducting quantum processor featuring 10 individually-accessible Xmon qubits that are controllably coupled to a bus resonator, based on which we deterministically produce the Greenberger-Horne-Zeilinger (GHZ) states with up to 10 qubits. The effective qubit-qubit interactions, mediated by the bus resonator, can be tailored to entangle arbitrarily chosen qubits. The 10-qubit GHZ state, whose full information is obtained through tomographic measurement, represents the largest entangled state produced so far in solid state architectures. As another remarkable feature of our quantum processor, we demonstrate that the bus resonator can be used for parallel operations on different subsets of qubits, simultaneously entangling these pairs of qubits.