An astounding collection of medical specimens, including bits of President Lincoln.

San Franciscans leave gifts and messages for the magical beings that live behind the tiny, mysterious door installed on a tree in Golden Gate Park.

The largest greenhouse in the world is home to over one million types of plants.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

Read a book next to a Midtown waterfall.

Prison made famous by The Shawshank Redemption has been out of commission since 1990.

A magical place that lets you play in and explore the world of Studio Ghibli.

A former utopian healing center created by a huckster and built by derelicts.

Long the exclusive domain of birds and vagabonds, this little-known Central Park peninsula is open to the public once more.

This semi-secret storybook hedge maze is also the oldest garden in the city.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

A subterranean world of tunnels links several buildings of this rare 19th-century asylum.

This neighborhood grocery houses a treasure trove of Eastern European delights.

Every equinox this Maya pyramid puts on a spooky ancient light show.

The remains of a Canadian train crash are now mouldering beneath layers of rust and graffiti.

In the late 1990s, a mechanic and fan bought this iconic sportscar back from the dead.

One of the few places where you can visit a cenote and Maya ruins at the same time.

The 80-foot tire that looms over Michigan's I-94 was once a Ferris wheel in the New York World Fair.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

Two gems of Beaux Arts architecture that have been sitting vacant for years.

This Berlin island is home to a flock of free-roaming peacocks, as well as a historic ivory folly.

The busy transport hub is home to the tallest airport slide in the world.

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