Former villa and estate of James Deering developed to preserve native tropical forests.

Where monkeys run wild and the humans are caged.

A mysterious castle built as a monument to lost love.

A terrific purveyor of natural history objects and curios.

Japanese gardens dedicated to the Japanese farmer that refused to throw in the trowel.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

One of only two commuter aerial tramways in the United States.

An abandoned 19th century quarry in the middle of the woods, remade by unnamed wanderers into a massive series of rock thrones.

One man's swirling six-acre monument of stone.

Get tall with nature's lankiest beasts and their warthog friends at this Kenyan preserve.

Strange sandstone canyon known as the "place broken by itself."

A discreet little stairway on St. Nicholas Avenue leads to a quaint and unexpected cobblestone street of 19th century wooden rowhouses.

Small monoliths of several varieties of stone sit alongside a wooded path in the Bronx.

The Battle of Atlanta in 360 degrees, featuring a corpse that bears a striking resemblance to Clark Gable.

The competition: breathe deeply as long as you can.

The Hudson River School comes alive at this palatial estate.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Elevated freight railway turned wildly successful urban park.

Mysterious 500-year-old tapestries depict a unicorn hunt.

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

Visit the monolithic tomb of America's most famous general.

Hiroshima survivor on Riverside Drive.

Little Red Lighthouse under the George Washington Bridge.