Paradeplatz is where Zürich keeps its money and its chocolate, often within a few metres of each other. The square sits at the heart of the Bahnhofstrasse, flanked by UBS and Credit Suisse, institutions that together hold a remarkable share of the world's privately managed wealth.

What the gleaming facades don't advertise is what stood here before. From 1654 to 1718, the city's executioners lived on this square. The Volmar family held the post for nearly 250 years, father to son. The UBS building now stands where their house once was.

The square has moved on to less grisly pursuits, though in 2013 the Pink Panther gang robbed a jewellery store here of 7.2 million francs in under three minutes, escaping across the square in a grey Audi.

VoiceMap's self-guided audio tours trace Paradeplatz through all its lives, from executioner's address to the nerve centre of Swiss banking.