A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

The original toys that inspired the beloved children's stories are on display at the New York Public Library.

Outstanding taxidermy dioramas showcase the grandeur of the continent's wildlife with spooky realism.

This monument is dedicated to Balto, the heroic Alaskan sled dog.

This haunting monument honors the victims of 9/11.

This hidden oasis features a stunning view of the Hudson River and the Palisades from a castle-like museum.

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

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

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

This theater opened in 1998, but both the building and the puppeteers who perform there have a distinguished history.

This was once the largest four-sided clock in the world (yes, even bigger than Big Ben).

One of the largest aviation events in the world brings half a million aircraft enthusiasts to Wisconsin each year.

The remains of a enormous earthen figure of unknown origins cuts across a rural Wisconsin road.

This synagogue in Madison, Wisconsin, is a historic architectural gem and one of the oldest surviving synagogue buildings in the United States.

A jaw-dropping brutalist space church seems to have crash-landed in the middle of America.

The 21st century revival of one of the Olympic Games' oldest traditions, and its legacy.

An underground magnet for ever-changing street art.

Final remnants of the 1895 Cotton States and International Exposition.

The ruins of a cotton mill that was burned in the Civil War are still hidden in a Georgia forest.

A grassroots community effort in the 1970s led to the creation of this beautiful garden full of delightfully whimsical exhibits.

Scattered around Atlanta are little doors with big charm.

The first integrated firehouse in Atlanta houses a museum on the history of desegregation in the city's fire department.

This trio of Australian rock spires may have inspired aboriginal legend or just modern tourism.