This city park was once a lookout point for George Washington’s army during the Battle of Brooklyn in 1776.

One of the remaining markers of an era when Brooklyn and Flatbush were separate cities.

The site of a fallen tree that protected Americans from British forces during the American Revolution.

You can still ride this 100-year-old work of art in Brooklyn's largest public park.

A tree that grows parallel to the ground was declared Brooklyn's "crowning curio" by the poet who saved it.

This elaborate tunnel is the first structure composed of cast concrete in the United States.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

A wooden rollercoaster that still delivers a thrill.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Lie in a hammock where George Washington stood.

In its day this historic fort held 100 cannons pointed in almost every direction to protect New York.

Read a book next to a Midtown waterfall.

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

Site of the first pathological and bacteriological research facility in the United States.

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

A former insane asylum despised by Nelly Bly and Charles Dickens is now fashionable apartments.

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

A little lighthouse in New York City, surrounded by mysterious stories of insanity-driven construction.

Two large-scale sculptures of Adam and Eve greet visitors in the nude at the Time Warner Center in NYC.

A crumbling hospital from the 1850s on Roosevelt Island.

This massive boulder was hurled into a Zurich church when a gunpowder depot was struck by lightning in 1652.

Switzerland's oldest public observatory is an important part of the Zurich cityscape.

This colossal couch is an unlikely monument to Europe's first female Doctor of Law.

Ornate lobby of a police station is decorated with colorful murals by Augusto Giacometti.