The World's Biggest Stuff

Castle

The largest ancient castle in the world is Prague Castle in Prague. Built in the ninth century, it is an oblong irregular polygon with an average diameter of 420 feet and a total surface area of 18 acres. At times, it has housed the kings of Bohemia as well as Holy Roman emperors and presidents of Czechoslovakia. After Czechoslovakia split into the Czech Republic and Slovakia in 1993, the castle became the seat of the head of state of the new Czech Republic.

Animal

Blue whales, on average, weigh 176 tons. Their tongues alone are as heavy as an elephant. They reach these behemoth proportions on a diet of tiny shrimplike animals called krill. Blue whales were hunted almost to extinction but are now on the International Union for Conservation of Nature’s list of endangered species. They live in all the world’s oceans, but travelers who wish to spot these rare creatures might try a whale-watching cruise in the Gulf of Maine, which runs from Massachusetts to Nova Scotia. Visitors to Santa Catalina Island, Calif., can try to see them from December to March. Car ferries crossing the Bay of Biscay (north of Spain and west of France) often pass these animals, and Iceland also offers blue-whale-watching tours.

Skyscraper

Dubai, United Arab Emirates, opened the world’s tallest skyscraper in January, and superlatives have poured in ever since. If you stuck the Eiffel Tower on top of the Empire State Building, you still wouldn’t have a structure as tall as the Burj Khalifa. It rises 2,717 feet from the desert and provides views of the Persian Gulf, the sail-shaped Burj al-Arab hotel and the manmade Palm Jumeirah island. Originally named Burj Dubai, the building was renamed in honor of Sheik Khalifa bin Zayed Al Nahyan, the ruler of Abu Dhabi, which pumped tens of billions of dollars into Dubai last year as it struggled to pay enormous debts. Burj Khalifa also plans to have the world's highest mosque and swimming pool.

Cruise Ship

Royal Caribbean’s Oasis of the Seas debuted in December as the world’s largest cruise ship. It’s nearly five times the gross tonnage of the Titanic, 1½ times longer than the U.S. Capitol building, has 16 decks and has a capacity for 6,296 guests. At 1,187 feet long, 208 feet wide and 213 feet in air draft, it’s too long, too wide and too tall to fit through the Panama Canal.

Coral Reef

The Great Barrier Reef off Queensland, Australia, is so large that it can be seen from space. It is 1,260 miles long and home to thousands of separate reefs. It’s a breeding area for humpback whales as well as six species of sea turtles, including the endangered green sea turtle. About 125 species of shark, stingrays, skates and chimera live on the reef. Swimmers, snorkelers and divers beware: It’s home to dangerous creatures, too, including the box jellyfish (which can inflict a fatal sting on humans), the blue-ringed octopus (whose venom can kill an adult human in minutes) and 15 species of sea snakes (all of which are lethal).

LED Project

Abu Dhabi, United Arab Emirates, just became home to the world's largest LED project. The Yas Hotel looks like something out of a science fiction movie or, in the words of the hotel, “a giant fishing net tossed over the sea.” The eye-catching hotel is wrapped in 5,000 LED lights that can change colors and even display video. The hotel has several restaurants, a spa, two rooftop swimming pools and access to an 18-hole golf course on Yas Island.

Swimming Pool

The world’s largest swimming pool is the San Alfonso del Mar seawater pool in Algarrobo, Chile. It is 3,324 feet long, longer than 20 Olympic-sized swimming pools laid end to end. Water from the neighboring Pacific Ocean is heated to a comfortable 79 degrees Fahrenheit for swimming. Sports enthusiasts can sign up for classes in swimming, sailing, kayaking and scuba diving.

Tree

Trees invite superlatives. The world’s biggest tree is General Sherman, a giant sequoia that’s 275 feet high with a trunk volume of about 1,487 cubic meters. You’ll find it in Giant Forest within Sequoia National Park east of Visalia, Calif. General Sherman is believed to be between 2,300 and 2,700 years old.

Indoor Water Park

The Tropical Islands Resort near Berlin is the largest indoor water park in the world. It’s housed inside a giant former blimp hangar and is 1,181 feet long and 689 feet wide. It contains an artificial rain forest, a tropical village, white sand beaches, a Balinese lagoon, an artificial sea and Germany's highest water slide. Visitors can take in the big picture by dangling in a chair beneath a giant helium balloon. The sauna and spa complex offers traditional massage, Thai massage and something called a “hot chocolate massage.” If you’re smitten with the faux tropics, you can also choose to spend the night here in a tropical island lodge or a tent in a rain forest camp.

Mountain

Mount Everest, 29,029 feet, is the world’s highest mountain. In 1953, New Zealand’s Edmund Hillary and Nepal’s Tenzing Norgay were the first to reach the summit. Mount Everest has claimed the lives of 133 mountain climbers, including eight who died in the 1996 Everest disaster documented in Jon Krakauer’s book “Into Thin Air.” The oldest person to climb Mount Everest was Min Bahadur Sherchan of Nepal, who summited at the age of 76 years and 340 days.

Shopping Mall

The New South China Mall in Dongguan, outside of Guangzhou, China, boasts 7.1 million square feet in gross leasable space, making it twice the size of the Mall of America in Minnesota. The Guangzhou mall has a roller coaster, canals, lakes and room for more than 1,500 stores. Trouble is, since its opening in 2005, it has stood nearly empty. Its spectacular failure has been blamed on lack of infrastucture including no local airport, and being out of tune with a local economy that has 1 million locals and 5 million poorly paid migrant laborers. Dongguan, which is dominated by the export industry, suffered even further with the global economic downturn.

Desert

By definition, a desert is a region that receives almost no precipitation. Surprisingly, Antarctica qualifies, as it receives annual precipitation of only 8 inches along the coast, and far less inland. Antarctica rolls on for more than 5.3 million square miles, making it a larger desert than the Sahara, the Arabian Desert or the Gobi Desert. Of course, if it’s heat you seek, the Sahara in North Africa is the largest hot desert in the world. At its greatest length, it stretches 3,200 miles from east to west.

Aquarium

Georgia Aquarium in Atlanta, which opened in 2005, is the world’s largest, with 8 million gallons of water. It contains the largest collection of giant groupers, potato groupers, humphead wrasses, tarpons, giant trevallies, batfish, sawfish, blacktip reef sharks, giant hammerhead sharks and wobbegong sharks in an aquarium.  It’s also the only aquarium outside of Asia to house whale sharks, the world’s largest fish. You can swim or scuba dive with these whale sharks as part of the aquarium’s programs. The swim program allows participants to swim at the surface with an air supply, which does not require any certification.

National Park

Northeast Greenland National Park is the largest national park in the world, with an area of 375,000 square miles. It is therefore larger than 163 countries. It’s the only national park in Greenland, as well as the most northerly national park in the world. Visitors will find virtually no humans but can look for polar bears, musk oxen, walruses and five species of seals. Narwhals migrate into the fjords in summer. The park is north of the Arctic Circle, so the aurora borealis can be observed almost year-round, but the best times are from October to early April.

Roller Coaster

Kingda Ka roller coaster at Six Flags Great Adventure in Jackson, N.J., is the tallest and fastest roller coaster in the world. The train climbs to 456 feet and can accelerate to 128 mph in 3.5 seconds. The thrill ride travels 3,118 feet and lasts 59 seconds.

Waterfall

Angel Falls in Canaima National Park, Venezuela, is the highest waterfall in the world. It has a total drop of 3,212 feet, which makes it higher than Burj Khalifa, the world’s tallest skyscraper (which is 2,717 feet). Angel Falls was named after the U.S. pilot Jimmie Angel, who recorded it in his log book in 1933. If you’re wondering where to find the largest waterfall in the world, head to Boyoma Falls in the Democratic Republic of the Congo. It flows at a rate of 600,000 feet per second.

Tropical Rain Forest

The Amazon rain forest encompasses 1.7 billion acres and stretches across Brazil, Peru, Colombia, Venezuela, Ecuador, Bolivia, Guyana, Suriname and French Guiana. It is, however, shrinking at an alarming rate. National Geographic magazine reports that close to 20 percent of the Amazon has been cut down in the last 40 years. The Amazon has the world’s richest diversity of birds, freshwater fish and butterflies and is home to jaguars, pink dolphins, howler monkeys, southern two-toed sloths, poison dart frogs and scarlet macaws.

Active Geyser

Steamboat Geyser in Yellowstone National Park's Norris Geyser Basin is the world's tallest active geyser. During major eruptions, it throws water more than 300 feet in the air. The geyser has gone through periods of activity and dormancy. It has erupted as frequently as every four days and as infrequently as every 50 years. When it does happen, though, you’ll know it. Conversation becomes nearly impossible next to the geyser. Mature lodgepole pines have been broken by the blast, stripped of their limbs by the weight of ice from the water and steam of winter activity, and undermined and then washed away by the geyser’s massive discharge.

Restaurant

The Bawabet Dimashq, also known as the Damascus Gate restaurant, in Damascus, Syria, is the largest in the world, with 6,014 seats. What’s on the menu? Just about everything. The huge restaurant complex has six culinary themed sections for Indian, Chinese, Arab, Iranian, Middle Eastern and Syrian cuisine. Local specialties include lamb with thyme, steak with yogurt and beans, tabbouleh, hummus and baba ghanoush. During busy summer months, the restaurant employs up to 1,800 people in the dining area and kitchen.