An abandoned mine now resembles a post-apocalyptic landscape of derelict buildings and blood-red pools of water.

In Portugal, a secluded stretch of untouched natural beauty hides at the bottom of a steep hill.

These 400-year-old ruins are all that's left of the monastery where Ines de Castro was assassinated by the King of Portugal.

Come for the bread-themed puppet show, stay for the buffet.

This enigmatic Roman tower lurks just outside Belmonte.

One of Europe's largest groups of dolmens remains largely off the typical tourist track.

This crumbling Portuguese ruin overlooks the populace it once ruled.

Ruins of a historic medical facility sits eerily by the water.

Monsters and miniatures are held in equal esteem at this wondrous museum.

For hundreds of years, automatons moving to metallic music have been marking the passage of time.

A deep mark on the remains of a Roman temple, believed to be left by a legendary warrior.

This concrete sculpture features a woman opening her heart to showcase a beautiful fern.

One of the world’s largest collections of paper memorabilia chronicles 4,000 years of papermaking.

The world's first time capsule lies behind a welded steel door in Atlanta.

This statue honoring the most decorated dog of World War I stands in a Connecticut park.

A wunderkammer hidden on the top floor of the Hartford statehouse.

With some 500,000 books across five buildings, this bookstore is a reader's paradise.

Owned by no one but beloved by all, Brownie was a good dog.

This opera house along the banks of the Connecticut River has two Tony Awards to its credit but it’s never staged a single opera.

This collection of over 50 classic pinball machines awaits visitors to downtown Roanoke.

A former mental hospital founded in the 1930s by a eugenicist who advocated for the forced sterilization of patients.

The flower-shaped temple in Virginia aims to transcend the boundaries of the world’s religions.

This maze-like slot canyon is a unique gem within an already fascinating geological area.

This historic folk museum celebrates the attention to detail that makes America great.