Pigduck of Turku.

An abstract monument to a symphonic composer.

Finnish lake, and scene of an infamous murder mystery.

Collection of nearly 500 concrete figures sculpted by the late Veijo Rönkkönen.

Extraordinary animals sculpted from leftover junk.

A man's home is his castle.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

A castle built for love, and abandoned due to heartbreak.

Millions of dollars worth of sculpture decorate this Iowa city center.

This museum preserves the hand-dug tunnel that kept Sarajevo afloat during the Serbian siege.

An elaborate Mayan city shrouded in alien conspiracy revealed the tomb of Pacal the Great.

The ruins of an ancient Mayan city, beautifully preserved and only accessible by boat.

A former copper mine which became a truly unsuccessful prison.

This spa theme park lets its guests take a dip in pools of coffee, wine, or ramen broth.

This half-finished "city of toys" was almost Italy's own Las Vegas.

One of the ghostly stops along Route 66.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

The abandoned hospital whose elaborate ghost stories cover up the dirty truth - an uneventful sanitation issue and other mundane reasons for its demise.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

This picturesque mansion has gone from opulent ruin to nature museum.

A century-old tradition has culminated in a small but singular collection of feline effigies.

The ravine where Jesse James supposedly performed an impossible jump to evade capture.

A 1:20 scale piece of the Netherlands commissioned by a queen lets visitors take a stroll as giants.