Two decades after its destruction in the Sept. 11 attacks, the work to rebuild the World Trade Center complex remains incomplete.

Two planned skyscrapers, a performing arts centre and a church are still unfinished at the site, which plays host Saturday to the annual ceremony honouring nearly 3,000 people killed in the attacks.

Visitors to the commemoration will find a place that no longer has the feel of a construction zone, though, even as the work continues.

The memorial plaza with its twin reflecting pools opened in 2011. One World Trade Center — the spire originally known as the Freedom Tower — opened in 2014, as did the National Sept. 11 Memorial and Museum. An underground transit hub and shopping mall opened in 2016. Three other glassy towers built to replace those lost in the attack are open.

Cranes and construction fences, however, can still be seen around the site. Here is a look at the unfinished work:

2 World Trade Center

Planned as the second tallest skyscraper at the site, 2 World Trade Center, might someday reach 80 stories. But for now, just a low stump of a building exists as a placeholder, covered with colourful graffiti-style murals at the northeast corner of the Trade Center site.

Developer Larry Silverstein has said he wants to sign an anchor tenant for the tower before starting construction.

Despite the coronavirus pandemic emptying out office buildings, the now-90-year-old says he is confident a tenant will be found so the Norman Foster-designed tower can be built in his lifetime.

“At the end of the day, my goal is to put the shovel in the ground as soon as possible, and complete the rebuilding project we started 20 years ago,” Silverstein said in an emailed statement.

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