Display pedestals comprise at least one generally planar horizontal support member, and at least one vertical column. The top surface and/or the bottom surface of the support member has least one depression or at least one projection, and at least one vertical column fits to the depression or projection. Multiple columns may be arranged in, and rotatable and detachable in, pillars that support multiple top and intermediate support members, so that the pedestal is modular and adjustable by rotation into many different configurations.