In the main dining room, a nine-ton boulder caps the fireplace designed by local architect Earl Young.

Unique Michigan homes look like something out of Tolkien's "The Lord of the Rings."

A miniature city, once ruled by the Queen of the Netherlands.

A smoke stack so large, the Washington Monument could fit inside!

"Polynesia on the Plains."

A collection of huge, site-specific sculptures sitting in the Montana woods.

Two stone columns flank the grand Venice square, but there were supposed to be three.

Go inside to really appreciate this 500-year-old technological masterpiece.

The ruins of the largest gladiatorial school in Rome are largely hidden under modern streets.

This giant tower beacon was a key navigation tool for pilots delivering mail amid the night skies.

A narrow strip of land is home to the tallest migrating dunes in Europe.

Lithuania's outdoor sculpture trail of wooden folk art.

A miraculous three-handed portrait of a saint can be found inside this church.

Legend has it that Napoleon Bonaparte fell in love with this Gothic church.

An old hill fort covered in over 100,000 crosses is a symbol of Lithuanian nationalism and beliefs.

Over time, this castle grew to encompass the entire island.

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

A small but immensely extravagant palace built by the "Night King."

Originally envisioned by King Ludwig II to rival Versailles, Herrenchiemsee's "New Palace" remains half-gilded for lack of funds.

The prototype for all Nazi concentration camps.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

An Irish town has built a statue to a silent film actor simply thanks to the holidays he once spent there.

The house where the writer spent his formative years.

One of Ireland's most infamous prisons for rebels including men, women and children.