Places mkowal Wants to Go

A 300-yard long natural tunnel runs through a ridge deep in the Appalachian Mountains.

A strange rock with a sinister reputation lurks within the crimson waters of this Scottish glen.

An extraordinary mixture of natural beauty and man-made phenomena.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

Stalactites and stalagmites in a beautifully lit cave.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

A massive underwater sinkhole made famous by Jacques Cousteau.

400-year-old garden, restored to beauty.

This museum houses an imposing skeleton army comprised of creatures great and small.

The final resting place to 300 Victorian-era pets hides inside the city park.

An abandoned relic of the city's failed experiment with below ground transit.

The haunting, dilapidated remains of a former poorhouse on Staten Island's Greenbelt.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

Eons old volcanic activity created one of the most stunning rock formations in the United States.

A 19th-century artistocrat's mansion, turned into a library, hidden in a modern library.

A fantastic castle rumored to be the birthplace of King Arthur.

This crescent-shaped sliver of sand is a magical haven for a herd of feral horses.

The watery grave of Captain Bligh's famous ship.

Depression-era fun lives on in this Harlem museum dedicated to the sport of the street.

Piano-making empire filled with 200-year-old steam machines still churning out 1,000 instruments a year.

Home to the infamous "Typhoid Mary" and the worst loss of life in New York's history prior to September 11, 2001.

Pompeii's less famous neighbor is still revealing her secrets.

Enjoy an overnight at an old haunted B&B site of the Borden family murders.

The intriguing personal collection of a professional demon-chaser.