This elaborate High Victorian Gothic structure is one of the world's few 16-sided buildings.

This cliff-face port is considered a masterpiece of mining engineering.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

This unassuming oasis elevated just above the busy streets of Jerusalem offers one of the best views of the Old City.

One lonely, modern pyramid has gone from corporate think tank to deserted boondoggle.

Touching this little fossil embedded in the wall of a grand mosque-cathedral may make your wishes come true.

These three lighthouses played a fundamental role in the maritime life of Eastham.

This unique sculpture is often overlooked by pedestrians.

Perhaps the most spectacular grotto along the Algarve coastline.

Nature is slowly overtaking this disused cemetery on the outskirts of Brussels.

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

A grove of "candelabra redwoods" deep in California's Lost Coast.

Next to the Leaning Tower of Pisa is a cemetery home to ancient sarcophagi and disturbing murals.

The eerie remnants of an ancient forest were hidden under the sand for centuries.

This fountain is dedicated to the workers who perished constructing the Fréjus Rail Tunnel.

This strategically-placed fountain creates the magnificent illusion of mustangs galloping across a river.

Described by William Wordsworth as a "World of Wonder."

One of the steepest streets in the United States makes an intriguing challenge for cyclists.

This floating garden in the sky is straight out of a fairy tale, but the real thing is nothing short of magical.

Imagine having a street run right through your home, or better yet, a historic bridge three stories high.

Designed as a labyrinth, this subterranean prison was crafted without bars or doors.

Makers and sellers of the original and finest York Ghosts.

The only thing sweeter than the potatoes is the canine proprietor of this roadside stall.

Deceased nuns were placed on stone chairs to decompose, while the surviving nuns prayed near the lifeless bodies.