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

One of the most important yet well-hidden museums dedicated to the history of medicine.

One of the last surviving C-97s sits in a field in front of a Wisconsin inn.

Twice a day one of these tragic bronze mariners drowns with the tide to remember all those the sea has taken.

During the 19th century, you could pay for violence off a prix fixe menu on this Manhattan street.

Deliciousness abounds at a Guatemalan restaurant masquerading as a pizzeria.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

The world’s largest collection of Tiffany glass sits in a warehouse in Queens.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

This plot of old-growth forest is the largest surviving remnant of New York City's original woodland.

Every year model trains zip through a miniature New York City that's now 150 landmarks strong.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

The famous author's cottage hideaway.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Elevated freight railway turned wildly successful urban park.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

This impressive working clock made of 16,000 plants changes its flowers twice a year.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

Those who own or stay at this 500-year-old, allegedly cursed house often meet terrible fates.

The oldest surviving presidential residence in the United States.

One of the oldest of its kind.

This elaborate towering structure was once famed for its revolutionary height.