20 Most Polluted Cities in the World

Riyadh, Saudi Arabia

Riyadh is not only the capital city of Saudi Arabia and the country’s largest city, it’s also the dirtiest. In addition to high industrial waste and heavy traffic, air quality is greatly affected by frequent sand storms in this desert metropolis.

In recent years, Saudi government agencies such as the Ministry of Health, the National Water Co. and the Higher Commission of Development of Riyadh have come together to try and find solutions to this environmental crisis.

Ammar shaker / Own Work

Ammar shaker / Own Work

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11 Great Hostels to Stay In

For budget-minded travelers in search of a cheap place to stay, hostels can be the perfect option. Generally, hostels offer much better value than hotels and short-term apartment rentals. Because less money is spent on accommodations, it allows globetrotters to designate a larger portion of their budget to good food and sightseeing activities instead.

11 Great Hostels in Europe to Stay In

If you’re a budget-minded backpacker interested in meeting fellow travelers along the way, hostels are an exceptional alternative. Intimate, community-minded, and affordable, hostels have exploded in popularity and really come a long way. From shared open-concept spaces to private ensuites, it’s easy to find a mix of both communal and secluded accommodations.

The 10 Most Historic Prisons

While jail time isn’t a walk in the park for any convicted felon, many tourists flock to historical prisons around the world when traveling. This is due to their mystic, history, and eerie ambiance. While it may seem a little crazy, visiting a local prison can provide a ton of insight on a region’s roots and culture.