Monterrey's take on the "Speakers' Corner" was set up as an open space for freedom of expression in 1985

A honeycomb-like structure of interlocking shelves creates a beehive of books.

This museum tells the story of a decisive battle in the Mexican-American War.

The outdoor area of this contemporary art museum in Mexico is a modernist reinterpretation of hacienda architecture.

A Beaux-Arts architectural surprise and a charming nostalgic tour through northern Mexico’s railway revolution.

One of Monterrey's oldest buildings is perched atop a hill boasting impressive views of the city.

In use from 1742 to 1910, only flat headstones were allowed in this cemetery.

A tribute to those that perished during the American Revolution.

George Washington, Alexander Hamilton, and Benjamin Franklin all slept at this humble inn.

One of the world's oldest continually operating bookstores.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

A park full of outsider art, created by college students studying outsider art.

A smaller model of the Da Vinci sculpture that took 500 years to come to life.

The famous bell was secreted away and hidden in a church in Allentown during the British occupation of Philadelphia.

A toxic ghost town sitting atop a massive coal fire.

The only geyser in the state of Pennsylvania is caused by pressure from an abandoned coal mine outside of the ghost town Centralia.

A eight-foot-tall statue resides in the heart of Pennsylvania anthracite coal country.

The smallest covered bridge in Maryland.

This Memphis recording studio launched the careers of Jerry Lee Lewis, Johnny Cash, and Elvis Presley.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

At the end of a street is a statue with no indication as to why it was created.

This semi-spooky remnant of an abandoned hotel provides fantastic views.

A failed piece of Orientalism has become the proud symbol of a community.

The "Seinfeld" diner.