Yes, we start with the most ubiquitous and iconic gadget of them all, the TARDIS (aka the TT capsule). This unassuming rectangular blue-box is the primary space-time vehicle used by the Time Lords. TARDISes usually move through time and space by "disappearing there and reappearing here," in a process known as materialization. If you're claustrophobic, have no fear, the TARDIS is "bigger on the inside."
Picture by ThinkGeek