Thousands of unique minerals, including some of the most impressive fluorite crystals in the world.

A curiosity-seeker's paradise set inside a three-story historic school house.

Amazing taxidermy dioramas from the 1960s in a cement building meant to look like an ice cave.

Hikers can still stroll beneath the long conveyer of this abandoned mining facility hidden in a West Virginia river gorge.

This head-spinningly bizarre Depression-era art cave is wall-to-wall quartz and Jesus.

You thought Santa Claus didn't exist, but it turns out you were wrong.

Dinosaurs invade a suburban Nashville neighborhood.

Hiding behind a grocery store is a spectacular cavern carved as part of an old limestone quarry.

The world's largest collection of porcelain "veilleuses-theiere," or night light teapots, includes four that belonged to Napoleon.

Everyone and everything one man ever loved and lost, now stare into the East for all eternity.

A tribute to a 13-year-old boy who was kidnapped in 1793 and escaped over two years later.

Once the most flame resistant building in the country, the South Carolina Historical Society building was almost burnt down in a fire.

A nostalgic bibliographic gem.

Disks are rolled out onto the south lawn to absorb the impact of Marine One's wheels like giant coffee coasters.

Four bald cypress trees in Lafayette Square, across from the White House, mark the southern edge of a 100,000 year old cypress swamp.

A 35-foot-tall fork stuck in the ground outside an office building in Missouri.

All you ever needed or wanted to know about America's favorite whiskey, but not a drop to drink.

Man-made geyser that rises to the exact height of the Gateway Arch.

An enormous natural sandstone bridge in Kentucky.

A collection of outdoor art by renowned muralist Robert Dafford depicts the history of a flooded city.

Once decrepit and slated for demolition, now one of the longest pedestrian bridges in the world.

In the loving memory of a tragically deceased role-player this Illinois park is decked out with both dungeons and dragons.

This botanical garden outside Chicago boasts an array of more than 300 varieties of lilacs.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.