Viagra
To determine what is three times larger than Niagara Falls, we would need to define what aspect of Niagara Falls we're considering—such as its height, width, or volume of water flow. For example, if we consider the height of Niagara Falls, which is about 167 feet (51 meters), something three times larger in height would be approximately 501 feet (153 meters) tall. If you have a specific measurement or aspect in mind, I can provide a more tailored comparison.
Assassination and eyeball spring to mind.
Sinewy and soft spring to mind...
When thinking of a vacation to Niagara Falls, visiting Niagara Falls State Park naturally comes to mind; however, there is more to Niagara Falls than this usual destination. Divided into four regions, Niagara consists of the Falls, River, Lake, and Canal regions. Each region is unique and offers tourists a variety of destination choices. Falls Region At the Canadian-USA border is the Falls Region of Niagara. Here, tourists visit Niagara Falls State Park and Cave of the Winds where a face-to-face encounter with the great water is as exciting as it is spectacular. If you dare, get soaked on Hurricane Deck, just feet away from the falls. A tour of Goat Island demands a visit to the Top of the Falls Restaurant to take in the awesome view of Horseshoe Falls. River Region Experience the Niagara River on an adventurous Whirlpool Jet Boat tour. You will ride the waves of the river and become part of the rushing water. Culture beckons at Niagara University, and make sure to tour the history of the Underground Railroad. Lake Region Surrounded by the Niagara River, Lake Ontario, and the Eric Canal is the Lake Region of Niagara. Fish on the serene waters for salmon, trout, bass, or walleye, and there are three ports available to serve boaters. Murphy’s Orchard is a working fruit farm with fresh produce to enjoy. Visit lighthouses, quaint shops, and wineries to complete the day. Canal Region Home to the US Navy & Marine Corps Memorial, the Canal Region offers visitors a calmer version of Niagara. Visit Lockport Cave & Underground Boat Ride to explore the wonders of the Erie Canal. At Becker Farms & Vizcarra Vineyards, pick your own fruit and try tasty homemade pie, fudge, and jam. If theater is of interest, the Ghostlight, Historic Palace, and Historic Riviera theaters will fill the void. Whether your imagination destination includes Seneca Casino, Niagara Falls, or one of the other attractive locations, you are certain to enjoy the visit. One of the most beautiful wonders of the world, Niagara Falls, New York, is a spectacular travel destination. Visit http://www.niagara-usa.com/ for more information on the vacation of a lifetime.
It seems you had just asked a question that opened a can of worms...
Bedspring, mainspring are two that come to mind.
Two that immediately spring to mind are bouquet and boulevard
Dread Pirate
None that spring to mind
Thoughtless, inconsiderate spring to mind.
Quantum and Quarks spring to mind.
'Transfix' and 'Hypnotise' are two that spring to mind....