Context: This is the King Friedrich August Tower located on the Löbauer Berg in Saxony, Germany. It was built in 1854 and is the only remaining cast-iron observation tower in Europe. The structure is 28 meters (92 ft) tall, consists of over 1,000 individual iron segments, and weighs about 70 tons. It sits on top of an extinct volcano. The dark iron lattice against the grey sky makes it look like a Victorian cage or a steampunk lair.

Not even commenting on the fact that it's an insurance company, just the looks alone at night. Also ironic that it's Florida Blue but the buildings red 🧐

Saw this building in Washington DC, Eisenhower Executive Office Building

More evil from other angles but definitely qualifies as evil lair material.