Standing approximately 40-feet tall, the pine prominently planted atop the Pacwest Center’s 25th-floor terrace could be the tallest tree growing from any high-rise rooftop on Earth.

The author poses with Hyperion, the world's tallest tree. She later learned that when many people walk and stand in the same spots near redwoods, they can damage the understory and roots systems.

Theoretically, the maximum height for trees is between 400 and 426 feet (122 and 130 meters). That is still staggeringly lofty. Consider the following 10 trees, each the tallest in the world by ...

Hyperion, the world's tallest living tree, has suffered as hikers in California's Redwood National Park damaged its habitat. Now, prospective visitors face a $5,000 fine and six months in jail.

The tallest trees on other continents, according to Guinness World Records, are: A Eucalyptus regnans found on the island of Tasmania, which stands 327.5 feet (99.82 m) tall, is Australia's ...

This is considered the world's tallest tree - and the name deserves the hype! At a whopping 115.95 metres tall, it's estimated to be anywhere between 600 and 1,000 years old.

Tree hunters Michael W. Taylor, center, poses in Yosemite National Park in front of the second tallest sugar pine tree on record. Taylor, a big-tree hunter who has been charting some of the ...

Giant Sequoia.In about they year 100 B.C., while the ancients of Crete were harvesting olives from the Vouves tree, and while the Sunland Baobab was approaching its fifth tired millennium under ...

Theoretically, the maximum height for trees is between 400 and 426 feet (122 and 130 meters). That is still staggeringly lofty. Consider the following 10 trees, each the tallest in the world by ...