Impossibly life-like natural history models created out of glass by a father and son.

Palatial mansion estate used in films including "Flowers in the Attic" and "The Witches of Eastwick."

The site of Paul Revere's historic two lantern warning.

Three prestigious academic collections come together to create a world-class natural history museum.

Friction between grains of sand cause a curious "singing" sound.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

An enormous, inside-out glass globe built in 1935.

This candy-colored storybook village originated as a 19th-century Methodist campground.

A sprawling nature preserve harbors the world's only living dragons.

This rustic old building is said to be the most photographed barn in America.

The largest treasure hoard in Europe is contained in a castle that was bombed out during World War II.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

It took over half a century but a Russian monument to a famous and tragic space pup finally stands in Moscow.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

This opulent 16th-century Maharaja’s palace is a unique mix of Hindu and Muslim designs.

An imperial fortress city that incorporated cultural elements from the entire Mughal empire, only to be abandoned the year it was finished.

This popular pilgrimage site offers a hole filled with holy healing dirt.

Giant origami sculptures tucked into desert scenery beckon passers-by to explore further.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

Legends surround this jagged rock formation in the New Mexico desert.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.