Were it not for the coronavirus, Vishal Garg would be doing the same thing on Sept. 11, 2020, that he did on Sept. 11, 2001 \u00ad\u2014 going to work in the cluster of skyscrapers that comprise the World Trade Center complex in lower Manhattan.<\/p>\n

These days, Mr. Garg, 42, goes there as the founder and CEO of his own company, better.com, whereas he was an intern on the day hijackers flew two jets laden with people and fuel at top speed into the towers.<\/p>\n

Nineteen years after the worst terrorist attack in U.S. history, people are again working in the clouds high above the Hudson River, and Mr. Garg and others say the focus must be on the now and next, not then.<\/p>\n

\u201cI think about all the lives lost and of course I\u2019m very sad about that,\u201d Mr. Garg said when asked about what he thinks about on the Sept. 11 anniversary. \u201cBut I also think about America being this amazing place. We\u2019ve rebuilt and made it better. Today, this is a testament to America rather than a focus on the past.\u201d<\/p>\n

COVID-19 has emptied office buildings in New York and many other cities, throwing its own wrinkle on what is already a heavy day in Manhattan. For the roughly 25,000 people who normally come to work in the World Trade Center\u2019s four towers, however, the current atmosphere has helped settle the clouds that formed over the nation\u2019s financial canyons.<\/p>\n

Taxpayers have shouldered much of the rebuilding load, but no small part of Ground Zero\u2019s comeback has been fueled by the vision \u2014 and wallet \u2014 of Larry Silverstein, a New York City real estate legend who signed the biggest office space deal in the Big Apple\u2019s history when he leased the World Trade Center for 99 years.<\/p>\n

He did so in July 2001. Six weeks later, his $3.2 billion investment was literally 16 acres of smoking rubble.<\/p>\n

Today, Mr. Silverstein, now 91, wakes up looking at an urban landscape he said he has poured $20 billion into making.<\/p>\n

\u201cIt happened when I was 70 years of age and it\u2019s only been about 20 years so, you know, no big deal,\u201d Mr. Silverstein said. \u201cI\u2019ve got one tower done in 20 years and I still have one tower to go to finish it.\u201d<\/p>\n

Mr. Silverstein shared with The Washington Times a letter he is sending to all his employees on Sept. 11 in which he stresses the rejuvenation.<\/p>\n

\u201cWe had to restore the commerce that has defined and animated the lower tip of Manhattan throughout the city\u2019s history,\u201d he writes. \u201cOur goal was to create a place full of life and vibrancy that would reflect who we are as New Yorkers. Simply put, our vision was to create a better version of New York. Today, that vision is a reality.\u201d<\/p>\n

The tenant lineup of today\u2019s World Trade Center reflects the downtown economy\u2019s shift from the paper-piled, hand-dialed trading floors that once dominated it. Spotify is a huge presence, as is Mr. Garg\u2019s online home mortgage and refinance company. There are law firms and magazine staffs. The 69th floor of 4 WTC has 34,000 square feet of walls painted by city street artists.<\/p>\n

The old-fashioned financial world isn\u2019t completely gone: Moody\u2019s is a major tenant in One WTC, better known as the Freedom Tower.<\/p>\n

While 2020 is an off-anniversary for the attacks, it marks the fifth for the Freedom Tower that stands where the Twin Towers did on Sept. 10, 2001. One WTC is the most expensive office building ever erected, costing $3.9 billion for the 1,776 feet designed to match the year when the Declaration of Independence was signed.<\/p>\n

The 104 floors of One WTC tower over the 72 floors of 4 WTC (which cost $1.7 billion) and the 52 floors of 7 WTC (which cost $700 million). The three monuments to modern capitalism that Al Qaeda wanted to annihilate dwarf the monument to art and spirit below the trio, the Oculus, which cost even more than the skyscrapers: $4 billion.<\/p>\n

After all, the Oculus, or \u201cthe Hub,\u201d is simply a group of retail outlets atop a subway stop, and even glitzy coffee table books cast a gimlet eye at the money it took to construct the white, arched edifice.<\/p>\n

\u201cBy the time the Hub opened, on March 3, 2016, many New Yorkers, subjected daily to the indignities of a crumbling subway system, were understandably vexed that the city\u2019s 18th-busiest subway station \u2014 beneath a tourist trap of a high-end mall \u2014 could cost $4 billion,\u201d Matt Kapp wrote in \u201cA Century Downtown,\u201d itself a gorgeously produced, $50 history of what amounts to a few city blocks.<\/p>\n

To Mr. Garg, Mr. Silverstein and others, however, the Oculus is one more indication of how something vibrant and impressive has replaced a spot so wounded and depressing.<\/p>\n

\u201cThat thing is pretty cool, it is a deep, moving thing to look at,\u201d said Benjamin Capshaw, a Louisiana investment banker who took his family to look at the modern WTC several months ago because, in the summer of 2001, he worked in the soon-to-be destroyed one.<\/p>\n

\u201cMy daughter saw it and said, \u2018Why did they dig out such a big hole,\u2019 and I said, \u2018They didn\u2019t, sweetheart, that was already there,\u201d Mr. Capshaw said.<\/p>\n

As a trainee with then Morgan Stanley\/Dean Witter, Mr. Capshaw spent the summer of 2001 shuttling between the 66th and 72nd floors of the southern tower, the second to be hit on 9\/11, just a couple of weeks after Mr. Capshaw left the building and while he was still trying to get his paperwork mailed out of it.<\/p>\n

\u201cI remember watching the boat patterns out in the Hudson River, and that if you had a glass of water, sometimes it would move and bubble because the buildings would move,\u201d he said.<\/p>\n

The boat patterns are more visible than ever now. The architect of the Twin Towers the terrorists targeted, Minoru Yamasaki, had a fear of heights, so the old windows were narrow strips.<\/p>\n

\u201cThe windows on each of the new towers are huge \u2014 at One WTC they are 5 feet wide by 13.5 feet high,\u201d said Dara McQuillen, whose office with Silverstein Properties at 7 WTC has \u201cfloor to ceiling glass so the views are unbelievable. It\u2019s actually hard to concentrate sometimes because there is so much to see outside.\u201d<\/p>\n

The memory of what could be seen outside there 19 years ago gave Mr. Garg pause when Mr. Silverstein tried to lure Better.com out of its SoHo headquarters.<\/p>\n

But he found the capitalist pulse beating as strongly as it had when he was on the 78th floor of 1 WTC.<\/p>\n

\u201cI was walking to work on John Street when I heard the first plane hit above me,\u201d Mr. Garg said. \u201cSo I wasn\u2019t sure what I was going to think, and I wasn\u2019t sure what my team was going to think about working there. But when I stepped inside it was awesome; the ju-ju of Salomon Brothers was still there, it was column-free with high ceilings, but everything works. I\u2019m kind of superstitious, but the space has the same vibe and I loved 7 World Trade Center for that reason.\u201d<\/p>\n

A similar vibe prompted Mr. Silverstein to make downtown his home now as well as his office after a lifetime in Midtown.<\/p>\n

\u201cMy God, this is all vastly superior to what there was, there ain\u2019t no comparison,\u201d he said. \u201cDowntown makes me feel young again.\u201d<\/p>\n