There is an unmarked red button hidden over Houston's Buffalo Bayou that is just begging to pushed...

Once seen as a bit of an eyesore, this sculpture has become a staple of downtown Houston.

This monument owes its name to a quote by the famous civil rights activist and journalist.

This historic hotel invented the chocolate brownie.

The beloved home to all publications indie, erotic, and punky.

An eccentric park and pool.

The iconic Chicago sculpture hides a beautiful and easily overlooked plaque on the backside.

A goddess-topped water fountain in Chicago was created thanks to the dreams of a thirsty newsboy.

The oldest house in Chicago certainly doesn't look the part and there are some who say it doesn't deserve its title either.

Built to house a chapter of the Knights Templar, this grandiose building is a relic of Freemasonry in Chicago a century ago.

An institution dedicated to the towering buildings that make up skylines in New York City and around the world.

38-story baroque tower reflecting Detroit's rise, fall, and possible rise again.

To truly appreciate Detroit's landmark skyscraper, you have to step inside.

The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.

This elaborate Hindu temple is located in a Chicago suburb, but looks like it was transported directly from India.

What may be America's largest classic video game arcade lurks inconspicuously in a Chicago suburb.

This Indianapolis landmark offers a secret panoramic view of the city. 

At the top of the hour, this steam-powered clock's eight brass whistles play "Back Home Again in Indiana."

The largest historic preservation organization in the United States.

It's a unique monument honoring a great character who inspired a generation of young women to be more and pursue their dreams.

Two gushing waterfalls of hot spring water within a block of each other.

A 90-year-old underground water reservoir offers a more industrial kind of tranquility.

A medieval castle in the middle of rural Texas.

Locals dubbed it the "Owl Building" because of its bird-like appearance.