Design a tear-drop shaped building that seamlessly blends organic and mechanical elements. The surface is covered with intricate cobweb patterns, featuring detailed carvings and textures resembling spider webs. Integrate glowing neon green and intense purple energy veins pulsating rhythmically throughout the cobweb structures, creating a dynamic, living energy effect. Include pulsating lights that alternate softly between bright green and violet hues. The building's materials combine smooth, glossy metallic surfaces with natural, slightly organic textures. Add mechanical details such as tiny gears, circuits, and nano-structures subtly intertwined within the organic patterns. The overall aesthetic should evoke a futuristic, bio-mechanical fusion with a glowing, vibrant energy presence.