London has more than 300 languages spoken within its boundaries. elaborate
Quebec City is the only fortified city north of Mexico. elaborate
Xi'an is home to a massive army of terracotta warriors, but it's also the starting point of the ancient Silk Road. elaborate
Luanda is one of the most expensive cities in the world. elaborate
Taipei 101, once the world's tallest building, has a giant pendulum in its core to help dampen the effects of wind and earthquakes. elaborate
Bordeaux's city center is a UNESCO World Heritage site. elaborate
Sofia is home to one of the oldest mineral baths in Europe, dating back to Roman times. elaborate