An imposing pair of sphinxes stand guard outside this Egyptian Revival tomb.

This shrine dedicated to the Virgin Mary is also a tribute from a mother to her fallen son.

This historic Pittsburgh tennis complex is a rare example of natural red clay courts.

Sections of the iconic limestone columns have been left uncleaned as a reminder of the city's polluted past.

One Pittsburgh musician's decades-in-the-making memorabilia collection is on display at this rock-n-roll curio shop.

Once the most painted on object in the world, this short campus fence is well on its way to being so again.

Illegal drag racing two stories beneath Chicago’s streets.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

A science teacher's dream.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

A series of waterfalls and pools that flow through the 'Ohe'o Gulch and into the ocean.

These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

This striking art museum holds an amazing series of curiosity cabinets.

Statue dedicated to the star of an old television show.