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

Home of an evil witch famous within southern folklore.

Enormous lake at the bottom of a unique cave system.

The only diamond mine in the world where you can keep what you find.

Stairs often replace streets on the steep slopes of this old mining town.

The highest point in Arizona is an oddly snow-topped peak within the otherwise arid state.

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

An old saloon in the West filled with history, and according to some, a few dozen ghosts.

The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

What is the Thing?

See massive fossils that are over 200 million years old in northeastern Arizona.

A forest wonderland caused by Burlington, Vermont's aggressive southwestern winds.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

The entire length of the border is marked by a 20-foot-wide slash through the trees.

The Cambridge pub where Francis Crick announced that he and James Watson had discovered the DNA double-helix.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

Gutted during the Liverpool Blitz, this architectural husk has been left destroyed in honor of the dead.

The Liverpool street made famous by the Beatles is real.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

A former fisherman's hut deemed too small for habitation is now a delightful tourist draw.

Pompeii's less famous neighbor is still revealing her secrets.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.