This wall on a street corner in Lower Manhattan has been a blank canvas for a rotation of renowned artists since the 1980s.

Historical figures from New York City's Catholic community reside in Midtown.

The abandoned grounds and derelict greenhouses of this once-magnificent Edwardian estate are now a nature preserve open for exploration.

This outpost of America's most popular fast-food restaurant is housed inside a palatial mansion.

This outdoor gallery of graffiti-covered walls pays homage to the past, present, and possible future of street art.

Waterway populated with abandoned projects, including a submarine.

The famed amusement district marks the beginning of summer with a wild procession of nautical creatures.

New York's southernmost subway station is whimsically wavy.

This 19th-century clock has been restored to help withstand the harsh environment of its seaside home.

An abandoned Gold Coast-era mansion once intended for the exiled ruler of Albania, who never arrived.

The "Seinfeld" diner.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

A mysterious statue of a leather jacket-clad rebel leans coolly on an odd yellow clock.

The highest rapid transit station in the world.

The unassuming structure was part of a Major League Baseball stadium.

New York's oldest concrete structure is being preserved thanks to the gentrification of Whole Foods.

A former poultry store that looks like a giant duck and is one of the "seven wonders" of Long Island.

The home of aviation trailblazers, in a remote corner of the big city.

This abandoned seaside fortress is now simply an imposing ruin being taken back by nature.

An aptly-named street near the birthplace of the modern LGBT rights movement.

The first piece of public art dedicated to LGBT rights.

An art installation commemorates journalist Nellie Bly's undercover reporting inside a New York asylum.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

One of the most scenic falls in Massachusetts has a history of death and grim legend.