Biggest and Tallest Tree in the World.

The largest tree in the world is a giant sequoia (Sequoiadendron giganteum) in California's Sequoia National Park. Called General Sherman, the tree is about 52,500 cubic feet (1,487 cubic meters) in volume.

General Sherman is also tall, standing 274.9 feet (83.8 meters) high, but that doesn't put it anywhere close to the record of tallest tree.

The largest tree in the world is a giant sequoia (Sequoiadendron giganteum)

The tallest trees in the world are redwoods (Sequoia sempervirens), which tower above the ground in California. These trees can easily reach heights of 300 feet (91 meters).

The tallest trees in the world are redwoods (Sequoia sempervirens)

Source:http://www.livescience.com/28729-tallest-tree-in-world.html

World's largest cruise ship.

Harmony of the Seas

The 120,000-tonne, 16-deck ship .

Harmony of the Seas, the world’s largest cruise ship.
Some 2,000 crew are to cater for the needs of more than 6,000 passengers on Harmony, which is a metre wider than the current twin ocean-going monsters of the pleasure cruise world

Source:http://www.theguardian.com/world/2016/mar/11/world-largest-cruise-ship-harmony-of-the-seas-sets-sail-first-sea-trial

Specialist related to Health

1. Endocrinologists: Expert in Thyroid and Endocrine glands.
2. Pediatrician:Child Specialist
3. Rheumatologist: Body Joints Specialist
4. Urologist:Urinary Tract Specialist
5. Dermatologist: Skin specialist
6. Cardiologist: Heart Specialist
7, Anesthetist: Specialist before surgery to make patient unconscious.
8. Allergist: Allergy Specialist.
9. Gastrologist: Digestive system specialist
10. Orthopedist: Bones and Muscle Specialist.
11. Obstetrician: Pregnancy.
12. Dentist: Teeth
13. Optometrist: Eye Specialist.

Biggest Airplane in the World

Generally acknowledged as the largest airplane in the world, the single Antonov An-225 is the world's heaviest aircraft ever (maximum takeoff weight greater than 640 tons) and the largest heavier-than-air aircraft (in length and wingspan) ever entering operational service