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

Dinosaurs invade a suburban Nashville neighborhood.

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

At 135 years old and counting, this historic print shop is heaven for poster nerds and music buffs.

This replica of the Greek structure is in the heart of Nashville.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

Giftshop catering to cryptozoologists and anyone with a sense of humor.

The United States Capitol's former columns still stand.

Crammed into a Baltimore row house is an oddities shop that sells everything from skulls to dead insects.

Walk through the history of American pop culture.

A local farm's collection of unusual structures from a now defunct storybook amusement park.

A priceless collection of the Nation's cryptologic history.

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

An abandoned stretch of highway, deteriorating next to the operational one.

A labor of love built by local hang-gliding enthusiasts, this ideal launch spot was outlawed by the authorities and has since been largely abandoned.

Remnants of a storybook amusement park hidden behind a strip mall.