This picturesque cottage was the site of Ulysses S. Grant’s final and perhaps most important campaign.

The remains of the iconic train crash from the movie The Fugitive can still be found rusting along the Great Smoky Railroad.

This unassuming North Austin neighborhood was built to test the novel idea of home air conditioning.

The longest enclosed pedestrian bridge in the world spans 14 lanes of traffic and six rail tracks, all while lighting up the night sky.

A water pumping station disguised as a residential home to assuage concerned neighbors now tricks most passersby.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

One of the first intercontinental ballistic missile sites in the United States.

The Old Mill shown in the opening credits of “Gone With the Wind” is actually fairly new, and was never a mill at all.

A place of great reverence for Trekkies everywhere, a hero's future birthplace.

A hidden barn-sized rendition of Grant Wood's most famous, and most parodied, painting.

Home with Gothic windows featured in a famous painting.

Grant Wood painted some of his most famous works of art at this studio.

For this chef, an active volcano is his oven.

One of the most acclaimed eateries in Arkansas is a two-table diner on the ground floor of a family home.

Armenian monks at an island monastery in the Venetian Lagoon make a rare rose petal jam.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

Named the fifth most beautiful building in America in 1885, this former courthouse boasts the best view in the Village.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

The rough and tumble president's childhood home displays the shirt he was once shot in and the speech that saved him.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

Underneath the bustling city streets, a hydroponic farm grows unique herbs in an urban oasis.

The "Gateway to the Arctic" connects Barrow's indigenous population with the sea and its traditional industry: whaling.

This ruined fort and statue are a testament to the last king of Kaua‘i’s savvy diplomacy skills, which briefly brought Russians to Hawai‘i.

This lower Manhattan bar is set up in an old bank vault that rests beneath a skyscraper that hides even more historic splendor.