Ugland House Grand Cayman

This nondescript five-story office building is the headquarters of international law firm Maples & Calder. It is also the registered address of more than 18,000 corporate entities. Curious. See the website to read a vehement explanation of the importance of offshore financial centers in 'facilitating global liquidity and capital flows.' There's also a useful primer on the difference between tax evasion and tax neutrality – in case you were wondering.