Climb around the high waterfalls on series of iron ladders and bridges within the wildest gorge in the Slovak Paradise.

One of Hungary's most influential places of learning is also home to one of the world's most beautiful libraries.

A tomb in the shape of a traditional Mexican hat and shawl for the father of modern rancheras.

An abandoned 19th century quarry in the middle of the woods, remade by unnamed wanderers into a massive series of rock thrones.

One toy collector's legacy of hundreds of unique items includes the most diverse display of northern indigenous dolls.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

One of two side-by-side totem pole parks dedicated to educating visitors on Tlingit history and culture.

Low tide reveals 8,000-year-old rock carvings in Southern Alaska.

A tiny wilderness cemetery commemorates the deadliest episode of the Klondike Gold Rush.

A winding, blood-red tunnel of hardened lava navigable by foot.

Elevated freight railway turned wildly successful urban park.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

A huge enchanting public park just outside the ancient walls of Rome.

Ancient ruins hidden underneath a modern luxury hotel.

This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.

St. Francesca Romana, patron saint of drivers, resides in the church she founded.

This restored opera house is named after a soprano known for tragic romance, exile, and a truly uncomfortable wedding.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

This spot along the 23.5 degree north parallel marks the northern boundary of the tropics.

An Italian ghost town that fought obscurity, until a mysterious illness brought it to its knees.

A hospital where antique dolls are given new life.

A Nesting Doll of Churches.

Hidden in the back of a disused small town hotel is a dive bar shellacked with over a million pennies.

The hundreds of movies and television shows shot in this high desert town are commemorated in a unique museum.