Eureka Bank and Trust is a financial institution on Main Street in Eureka. Since all monetary actions in Eureka are electronic, the bank only holds safety deposit boxes. The bank is reinforced with osmium, making the bank the densest object in town. After Dr. Isaac Parrish deposited his Higgs field disruptor, it interacted with the heirloom antimatter, causing the bank to fly away. (Up in the Air)