Arabic is a right-to-left language, and books and documents are written and read from back to front. Arabic numbers, on the other hand, are read and written from left to right.

True trivia that may break a few hearts: when the Joker first appeared in 1940, he was supposed to be a one-off event that would disappear after a few incidents. Fans were so taken with his character, and they appreciated how brutal and unpredictable he was, that he was made a regular in the Batman franchise. He's lucky he wasn't cancelled! We would never have spotted these amazing Easter Eggs in the latest Joker film if it hadn't been for the internet!

The Teutonic Order's Castle at Malbork is the world's largest castle in terms of land area. It is a UNESCO World Heritage Site and was originally erected in the 13th century as a Teutonic castle and stronghold. In that regard, Poland is home to a whopping 15 UNESCO World Heritage Sites!

An art collector once paid $10,000 for actor James Franco's "invisible" sculpture. The piece was marketed as an "endless tank of oxygen." Yes, it's called air. We're breathing now... for free!

The majority of the outward indicators of aging on your skin are caused by the sun, which is why dermatologists have created the unique category of photoaging for sun damage.

Walt Disney has won more Oscars than anyone else. He was nominated for 64 awards, and won 26! Composer John Williams is the second most nominated person, with 47 Academy Award nominations (and counting).

In the meanwhile, the sterling silver-copper alloy may be used to make not just jewellery but also cutlery and tableware. Because of copper's hypoallergenic characteristics, sterling silver is non-irritating to the skin.

If you want to boost the bacteria in your bowel, eat a high-fiber diet or take fiber supplements. Fiber is a prebiotic that the bacteria can convert to healthy chemicals for nourishment (that can also help prevent colon cancer).

The cultural landmark is one of the New Seven Wonders of the World, representing a global emblem of Christianity and a major tourist attraction in Rio de Janeiro. Christ the Redeemer is 30 meters tall, atop an eight-meter pedestal overlooking the city.

Every month, your nails grow between 3 and 4 millimeters. That amounts to about 0.1 millimeters per day.

This may come as a surprise but the Gala was not always held at the Met. Actually, from 1948 until 1971, the Gala took place in different areas around New York City such as Central Park, the Waldorf Astoria, and the Rainbow Room.

As of December 2017, the most widely used hashtag on Instagram was #love, followed by #fashion and #photooftheday. 

The hashtag that had seen the greatest rise in popularity during the previous year was #photography.

The Ritz-Carlton occupies the 118th level of Hong Kong's tallest building, the International Commerce Centre (ICC), and contains the world's highest outdoor bar and swimming pool.

Going through a list of America's most notorious serial killers, two signs stand out above all the rest: Pisces and Gemini. Pisces are known for being loners, and Geminis are known for their charm—two characteristics commonly found in serial murderers.

In a country that’s famous for its windmills, it’s no surprise there are over 1,000 windmills spread across the Netherlands. 

The windmills traditionally harnessed the wind for a variety of purposes, such as grinding grain and draining wetlands, but there are only a few still in commercial operation. 

The UNESCO World Heritage Site of Kinderdijk is the best place to see Dutch windmills, with 19 traditional windmills.

Majuli is recognized as the largest river island in the world. It is located on the Brahmaputra river near Jorhat and encapsulates a lush green and pollution-free environment. Majuli attracts a lot of tourists every year because of its scenic beauty, its vibrant culture, and friendly people.

In a 2011 article, Martha Smith, a horticulture educator at the University of Illinois Urbana-Champaign, notes that in the 1620s, "Tulips were more valuable than gold. " Why were these plants so expensive?" Initially, the tulip was a luxury item only the wealthy could afford "She goes on to explain. Indeed, a single "Rembrandt-type bulb" cost the equivalent of $1,500 at the time, which was "ten times the annual income of a skilled craftsman or the price of a large house."

Other minerals can be combined with sand, lime, and soda ash to produce different colored glass. Adding nickel oxide, for example, results in the violet glass.

Have you ever thought of a tongue getting fat? But it gets fat when the other parts of the body get interesting, right? There is a correlation between tongue fat volume and obesity. So, the tongue also gets fat when the body of a person does. Notice this from now on!

Until the 1930s, the numbers on London's iconic Baker Street only ran up to 85, and 221B was not a realistic address until the street was expanded in 1930. Abbey National Building Society occupied a building at 219-229 Baker St. in 1932. They soon hired a full-time secretary whose sole responsibility was to respond to fan letters addressed to Sherlock Holmes at 221B Baker St. The City of Westminster assigned the Sherlock Holmes Museum the address 221B Baker Street in 1990, even though it is literally located between 237 and 241 Baker Street.

In the early days of Halloween, individuals would stroll the streets of Ireland while carrying hollowed-out turnips with torches inside. This custom is thought to have been the forerunner of the modern tradition of carving jack-o'-lanterns out of pumpkins.