The Vatican is the world's smallest nation, with an area of only 0.44 square kilometres and a population of only 825 people. It is most likely the only country in the world where you can walk around in less one hour. What makes it even more intriguing is that it is located within the city of Rome.

The energy in the sound wave spreads from the source in a succession of pulses from air molecule to air molecule. When a series of sound wave pulses crush, this is referred to as compression, and when they spread out, this is referred to as rarefaction. Sound waves travel through the air by compressing and rarefying it.

The huge Pangong Lake is located at 4,350 meters above sea level and is the world's highest salt water lake. India and China together share this lake. Normally, saline water sources do not freeze in the winter, but Pangong Lake does. From mid-May to October is the best season to visit Leh Ladakh by bike. Roads from Srinagar open in mid-May, while the Manali route opens later in the month. This road excursion is only available during the fall and summer seasons.

In 2002, a man who believes the 1969 Apollo 11 moon landing was staged by the government contacted astronaut Buzz Aldrin about it. As Aldrin walked outside a Beverly Hills hotel, a man thrust a Bible at him and demanded that the septuagenarian spaceman swear on it that he had gone to the moon. Aldrin was reasonably irritated after risking his life and making significant sacrifices to complete his mission. He was doing fine until the stranger labelled him a coward, a liar, and a thief. At that time, Aldrin, then 72, punched his sidewalk interrogator in the face. The District Attorney's Office in Los Angeles declined to file charges against Aldrin.

The Great Pyramid of Cholula, also known as Tlachihualtepetl (meaning "hand-made mountain"), is a massive edifice in Cholula, Puebla. It is the greatest archaeological site in the New World, as well as the world's largest Pyramid.

Yes, Prayagraj has got its name back after 443 years. It was earlier known as Prayag. The name is still used by the local people. King Akbar gave it the name Allahabad. He realized the importance of the city Prayag and built a fort at the river Confluence known as Sangam. The city got the locational advantage and it went on to become an important junction for the East India Company.

With tremendous reverence, I bow before the sun, who moves 2,202 yojanas in half a nimesha, stated Sayana, a 14th-century Vedic scholar. A yojana is 9 miles long, whereas a nimesha is 16/75 of a second. As a result, 2,202 yojanas multiplied by 9 miles multiplied by 75/8 names equals 185,794 miles per second or 2,99,000 kilometers per second. That is amazingly close to the true scientifically confirmed' speed of 3,00,000 kilometers per second. It is commonly assumed that his source was none other than the Vedas.

The U.S. Department of Health & Human Services reports that roughly twice as many women as men have Alzheimer's disease. For women, the signs of Alzheimer's also seem to deteriorate more quickly. Brain shrinkage affects women with Alzheimer's more severely than males. According to research, there may be other health issues at play here.

It may be time to discuss your vitamin D levels with your doctor if you're attempting to prevent or treat type 2 diabetes.

Starbucks was included as an Index component because it is the world's most extensively dispersed, premium-priced coffee business, and so presents an attractive economic barometer for comparing nations. The price difference for a Grande Latte ranged from £1.21 in Brazil to £5.72 in Switzerland, a 400% price increase.

Scholars think that Pachacuti Inca Yupanqui, who governed the Inca Empire from 1438 to 1471, began constructing Machu Picchu around 1450 AD. This is almost a millennium after the fall of the Roman Empire and less than a century before the arrival of the Spanish conquistadors in Peru.

South India was ruled by approximately 18 dynasties. Southern India's history spans more than four thousand years, during which time the region witnessed the rise and fall of several empires, dynasties, and empires. Cheras, Pandyans, Cholas, Travancores, Chalukyas, Sathavahanas, Pallavas, Hoysalas, Kadambas, Wodeyars, Rashtrakutas, Kakatiyas, and the Vijayanagara Empire were the most important dynasties at various points in history. Furthermore, the Muslim empire rose in this region in 1323 CE, followed by the Nizams and British Empire in the 18th century.

According to Commonwealth University studies, a single month of sleeping in a 66-degree room increased respondents' fat-burning abilities by up to 10%. Sleeping in the cold can help you lose weight, according to research, since the body's metabolism speeds up to keep you warm.

The basic idea behind cruising across the shores of a river is to derive utmost pleasure, and there is no better way to cruise off the Brahmaputra coast than to board the M.V Mahabaahu. It was built in Kolkata with state-of-the-art facilities, which include Cabins with very Assamese decor of silk panels in golden Muga, Bathrooms/showers with branded quality furnishings & fittings, Central AC with individual control, and others.

Cupcakes were once known as "1234" or "number" cakes, which is a fascinating and educational fact about them. This is because they are typically made with four ingredients: one cup of butter, two cups of sugar, three cups of flour, and four eggs. So, the next time you make a cupcake, keep the order in mind.

Even though Niagara Falls is over 12,000 years old, it is still relatively young in geographical wonder years. When compared to sites such as the Giant Causeway columns in Ireland and the K-Pg border in the Netherlands, Niagara Falls is a baby in terms of ecology. The first mention of Niagara Falls is supposed to have originated from Samuel de Champlain's narrative in 1604, which was most likely based on a story told by local individuals de Champlain encountered. The earliest true documentation of Niagara Falls comes from French traveller Louis Hennepin in 1678.

At age 16, Victoria met her future husband, Prince Albert of Saxe-Coburg-Gotha, who also happened to be her first cousin. After four years of friendship and flirtation, Queen Victoria proposed to her prince (actually, she had no choice—according to tradition, a man couldn’t propose to the queen). The smitten couple married in 1840.

Niagara Falls supplies about one-fifth of the drinking water in the United States. The surrounding Great Lakes contain 84 percent of North America's surface fresh water and offer approximately 21 percent of the world's surface fresh water supply. Consumption water from Niagara Falls should be avoided since it may be contaminated with parasites or germs before it is cleansed for drinking.

You're probably thinking I'm crazy right now, but it's true! As part of their mating ritual, the peacock spider, Maratus volans, performs a dance that resembles the YMCA. Furthermore, the bright colours on their abdomen make this a spectacular sight to behold. However, if the male spider's rendition of the YMCA does not impress the female, she will attack, kill, and even eat him.

The Korean alphabet is known as Hangul. King Sejong the Great designed it in the 15th century. Koreans have previously employed the Chinese alphabet and characters (called Hanja). Because this was difficult for commoners to learn, Hangul was invented for the sake of literacy. There are 14 consonants and 10 vowels in the alphabet. Letters are organized into syllable blocks.

Teddy named Magellan T. Bear has become the first teddy to reach space when he boarded space shuttle discovery in 1995. The teddy bear was not just a bear but an education specialist on a mission. The teddy bear later flew around the world, visited the South Pole, and explored much more.

Brit Garry Turner has quite the talent – he can pull the skin of his stomach a length of 15.8 cm (6.22 in) giving him the record for the Stretchiest skin! 

He is able to do this because he has a rare medical condition called Ehlers-Danlos syndrome. With this, the collagen that strengthens the skin and determines its elasticity allows for him to have such loose skin and super flexible joints.

Imhotep, the world's first known physician, used Sleep Temples as healing sanctuaries. The temples were used as a type of suggestion therapy, and people would go there to be healed of physical and mental ailments. Patients who visit a Sleep Temple are said to be put under the influence of incantation or a hypnotic state. Before finally falling asleep, the physician would make whatever suggestions he could to help them overcome their problem in the hopes that the gods would visit the patient while he slept and fix them.

Sweden may not be the first country that comes to mind when you think of space research, but it does lead the world in one important astronomical area: it possesses the world's biggest scale model of the solar system. Emanating from Stockholm's Ericsson Dome, the world's biggest hemispherical building, the model travels 950 kilometers to Kiruna, where the notion of Termination Shock - the end of the solar system - is commemorated.