A reproduction of earth's many biomes.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

A meditative space out of a fantasy story.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

See massive fossils that are over 200 million years old in northeastern Arizona.

An unusual round church in London with a Templar past.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

This lab's maddening silence is good for business but bad for sanity.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

The atmospheric road was never meant to be so creepy.

Rising from the sea like a stone monster.

A haunting collection of the vanished and disappearing natural world.

These eerie outliers of the lightning bug family glow a mysterious blue color.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.

Wild lights and sound effects turn a walk through some caves into an eye-popping 1960s tourist attraction.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

One of only two commuter aerial tramways in the United States.

A submerged archeological park still holds the wonders of a Roman Sodom.

A modernist landscape of water and sci-fi concrete.