Meet the world's longest tapeworm in a collection that really gets under your skin.

This Buddhist temple is home to the graves of the Japanese national legends, the 47 Ronin.

If Hello Kitty were Mickey Mouse, this would be Disneyland.

A train ride to the middle of nowhere gives its passengers some of the most iconic views of Japan's seasons.

The quintessential Japanese rock garden has existed for more than 500 years.

The 10,000 Torii shrine.

This Roman monument is surrounded by more recent construction, offering a stark contrast between ancient architecture and the modern urban landscape.

The Adriatic's most famous wind can be reliably experienced in the city's Marina.

A musical instrument played by the sea.

A diminutive statue that was inspired by the sculptor's own daughter.

On Gellért Hill, this statue depicts the tragic tale of lovers divided by the Danube.

Legions of Roman soldiers bathed in this ancient spa complex under a Budapest transit station.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

The second-tallest water tower shaped like a peach in the American South.

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.

The same water that fills a luxury resort’s pools feeds these free hot springs in the rainforest.

This neon blue river gets its color from a unique mix of bacteria and volcano minerals.

One of the world’s largest and deepest freshwater springs, where mastodons once roamed.

On a clear day, you can see all the way to the Virgin Islands from the top of this observation tower built in the 1960s.

A magnificent waterfall nestled in the heart of the El Yunque National Forest.

This museum preserves the heyday of Puerto Rican coffee.

The highest peak in Puerto Rico is home to a rare fern that can only be found on six trees at its summit.

This beachside town is home to a diverse nature reserve, multiple cays, and one of the three bioluminescent bays in Puerto Rico.

The world's second largest single-dish radio telescope, once used to contact E.T.