A rare view of a preserved Victorian science museum.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

The true jewel of Africa's west coast known as "Africa's Last Eden."

Ruined 11th century abbey built by King David I in Edinburgh, Scotland.

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

The home and birthplace of Caroline Dormon, a naturalist, artist, and the "mother of the Kisatchie National Forest."

The spectacular and eerie moss-covered grave site of 19th-century Belgian merchant.

A rare wooden coffin set vertically into the Gothic arch of an ruined church.

This lovely little burbling creek is actually a deadly waterway that has dragged down everyone who ever set foot in it.

An English artist has turned an unassuming ex-council house into a time-lost house of mystery.

A medieval fresco which reminds visitors that death will come for us all.

The walls of this medieval church are covered with perfectly preserved frescos, including a pristine example of the Dance of Death.

Legend says these rocks used to be hunting dogs, a story that may have inspired Sherlock Holmes' most famous case.

This amazing 15th-century mural remained hidden in plain sight for centuries.

This tiny little pool is said to be home to a malicious mermaid named Jenny Greenteeth.

Under a church hides a forgotten 13th-century ossuary containing the remains of around 2,500 people.

A perilous medieval road leading right into the sea.

A house of bones — but nobody is quite sure to whom they belong.

What was once a communal kitchen now serves heaping portions of hearty German fare.