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

This unique temple complex remains off the typical tourist trail.

After visiting hours, this picturesque waterfall is essentially turned "off" to be used for hydroelectric power.

The steel cable lets adventurers zoom between two mountain towns at speeds of up to 75 miles per hour.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

These particularly resplendent rodents are the state animal of Maharashtra.

See wolves, coyotes, and arctic foxes in a natural environment smack in the middle of New York State.

Located in Nairobi National Park, this animal orphanage is the oldest of its kind in Kenya.

In the Manduri reserve of Sao Paulo, you can see the endangered black-horned capuchin monkey up close.

This small Catskills village has six independent bookstores and more bookshops than restaurants.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

Coast along one of Japan’s mountain railways for coveted views of magnificent hydrangeas.

A brilliant turquoise lake in the mountains.

This remote stretch of sand is a penguin lover's paradise.

Rare and gorgeous birds abound in this protected wildlife sanctuary.

Only 68 people per day are allowed to visit this New Zealand bird-watcher’s paradise.

The world's longest nonstop reversible cable car soars through spectacular scenery to the medieval Tatev Monastery.

Western New York's largest independent bookstore doubles as a historical repository of all things Niagara Falls.

This 1920s Dutch barge is now a floating bookstore.

This once-derelict building is now one of the most beautiful bookstores in the world.

Zambia's smallest national park is home to one of the world's largest annual mammal migrations.

A cozy bookstore is tucked within an old gold mine shaft beneath the cafe and ice cream shop.

The highest tides in the world come in and out here twice a day, allowing you to essentially walk along the ocean floor.

This ancient monastery complex was transformed from an island to a peninsula when the lake was partially drained.