This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

An architect's childhood fantasy treehouse made real.

A shop for all your magical needs and notions.

An abandoned observatory in the middle of the Illinois prairie.

An abandoned relic of the city's failed experiment with below ground transit.

This magnificent Cincinnati graveyard is also a popular public park.

Discover a beautiful natural paradise, minutes away from a thriving city.

A ship that lived many lives under many names is now known merely as the "Ghost Ship."

The longest navigable underground river in the United States is home to countless blind and albino animals.

At the turn of the century, a chair like rock sat at the top of the falls and hosted the winner of a local beauty contest.

The humble Hoosier roots of a famed Broadway composer.

Walk in the footsteps of the famed astronaut at Purdue University.

Lions and tigers and leopards, servals, pumas, bobcats, lynxes, and ocelots... oh my!

A stunning, abandoned limestone quarry in southern Indiana provided the stone to erect the Empire State Building.

Tucked away in the forests of Indiana resides an abandoned waterslide that is now a popular graffiti haunt.

Ornate limestone building now filled with geologic specimens, and more.

A lesser-known part of the Kinsey Institute is this impressive collection of art, artifacts, and material culture related to human sexuality.

The world's largest collection of mechanical puzzles is a cornucopia of analog bafflers.

Display that gathers the basic elements of the universe in one convenient location.

Nature and art meet in this curvy creation

This stately clubhouse has showcased German-American culture for over a century.

This library and museum is dedicated to the life and literature of the Indianapolis native author.

Once adorning a New York skyscraper, these reclaimed ruins now haunt an Indiana park.

At the center of this cemetery stands a 2,000-year-old burial mound of the Adena culture.