A collection dedicated to the treatment of disease, held in London's oldest hospital.

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

This narrow canyon has been carved by the river over thousands of years into spectacular and curious forms.

They call this long foot bridge a swinging bridge, but really it's the bouncing you have to watch out for.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

A striking 12th-century-style castle built on the edge of a cliff.

148 feet long and in the middle of a verdant forest.

A seemingly endless landscape of pure salt stretches far across Bolivia.

Imagine playing a version of Legends of the Hidden Temple, but with a distinctly Southern Gothic flare.

One of the world's largest collections of pathological specimens.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

This 1920s Dutch barge is now a floating bookstore.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

A popular European tradition makes its way to the states on one of America's most famous bridges.

More than five miles of underground passageways.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

A "Titanic" superfan changed his name to Jack and set up this strange shrine to the blockbuster, complete with Korean food and Tarot readings.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

Accessible only at low tide, the deserted island is dotted with World War II ruins.

Leaf through over 30,000 artists' sketchbooks in what may be the world's largest collection of doodles

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.

Ancestral Puebloan ruins, natural arches, and box canyons abound in this seldom-visited corner of Monument Valley Navajo Tribal Park.