Crystal Cave in Kutztown lets you travel 175 feet below the Earth | One Tank Trips

KUTZTOWN, Pennsylvania (WPVI) -- In this edition of One Tank Trips, we're exploring one of Pennsylvania's greatest natural wonders.

Crystal Cave first opened in 1871.

Today, visitors can go 175 feet below the Earth to explore something that looks like it's from another world.

Crystal Cave is located in Kutztown, less than an hour and a half from Philadelphia.

Action News photojournalist Tom Kretschmer has more.