Places Methylation65 Wants to Go

The first full-scale tunnel built in America is short but scenic.

The small cave that housed Tennessee's "first citizen."

More than five miles of underground passageways.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

Disney's abandoned animal island is now an overgrown ruin that was almost the coolest attraction ever.

A subterranean haunt where wine and homemade biscottis are always on the menu.

This large midwestern cavern features impressive rock formations and an underground waterfall.

European castle ruins in an American state park are actually the product of death and grief.

This cave holds a surprisingly colorful variety of geological oddities.

A historic house in St. Louis was plagued by a series of suicides committed by family members involved in a successful brewery.

This mosaic-covered bar is brimming with curated curios.

A kitschy, creepy St. Louis mainstay.

Less a museum than a bizarre fantasy world created by artists and engineers.

Explore a real 19th-century lead and zinc mine at this immersive series of exhibits.

Entombed in this strange, white stone hill are the deadly remains of radioactive weapons production.

The remains of a bustling turn-of-the-century park built to showcase the wonders of electricity.

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

The remains of a Rockefeller's lush Italianate estate hidden in the underbrush on the coast of Lake Michigan.

The city of Rockford, Illinois is symbolically protected by a quartet of fittingly stony sentinels.

Chicago's Navy Pier on Lake Michigan was a training hub for aircraft carrier pilots during WWII.

One of the largest pieces of scientific equipment ever carried on a NASA space shuttle sits in a Chicago alley.

This modest post office sits on the site of H.H. Holmes' famous murder castle.

The final resting place of up to 6,000 Confederate soldiers, the largest mass grave in the Western Hemisphere.

Once known as the Illinois Asylum for the Incurable Insane.