Beneath the City Chambers on Edinburgh's famous Royal Mile, lies Mary King's Close, a series of narrow, winding side streets with multi-level apartment houses looming on either side, which has been hidden for many years. In 1753, the houses at the top of the buildings were knocked down to make way for the then-new building. Parts of the lower sections were used as the foundation, leaving below a number of dark and mysterious underground alleyways steeped in mystery -- and misery.

Here's some trivia for the month: travel to Singapore ‘Crazy Rich Asians’ style for cheap, last meals of 23 famous people, surprising things the TSA allows past airport checkpoints, the latest in flight meal reviews, burping and other global etiquette surprises and our latest Beatles trivia.

Here's some trivia for the month: the Latin Quarters in Paris, the world’s first floating space hotel launching in 2021, a whiskey lover's dream gift, a bridge linking Ireland and Scotland, cruise ships, dynamic ticket pricing, Anthony Bourdain, adventure personality, the Travel Guys.