A Spanish artist builds his own castle.

A breathtaking canyon offers stunning views and frightful pathways through an ecological paradise.

A solar-powered primary school inspires hope and experimentation in a country ripe for energy innovation.

Numerous sculptures set along hiking trails symbolize and idealize the relationship between man and nature.

The legendary cliffside castle of three-time Voivode of Wallachia, Vlad the Impaler.

The most playful of the life-sized statues that make up Singapore's "People of the River."

The Gaudí-inspired building that was the start of Terrassenc modernism.

Famed architect Antoni Gaudi built this generous thank you gift to a friendly host who housed him during a job.

Amsterdam's Red Light District leaves little to the imagination.

Infamous and now demolished panopticon prison built by its former inhabitants.

This chest hospital with a dark, haunted past serves as a fitting set for horror films and a paradise for ghost hunters.

Detailed sandstone carvings show an array of symbolism and adorable animals.

Numerous impressive carvings are embedded in the trees lining this street in Marrakech.

A whimsical garden of outsider art in the Spanish countryside.

Australian Lake set aglow by Noctiluca Scintillans.

A beautiful oasis town dating back to the Roman period still serves as reprieve from the brutal summer sun in Libya.

A small church ornamented with medieval erotic sculptures.

Does this strange mural depict witches battling beneath a penis tree?

Cursed swimming pool left abandoned is now a favorite of filmmakers and ghost hunters.

Ancient temple is home to centuries of art and spiritual artifacts.

A beautifully eclectic mix of architectural styles.

A centuries-old fortress city lies in ruin.

A toy store with a century-long history preserves the craftsmanship of playthings of the past.

The twists and turns of this serpentine maze are over 170 years old.