It houses the remains of a 17th-century version of the Titanic.

At low tide, you can see the remains of a 17th-century ship just off a Stockholm island.

Legend holds that a tortoise turned itself into this island to save two shipwrecked sailors.

The mastermind behind this palatial hotel perished on the Titanic weeks before its grand opening.

Mounds of fine golden sand that can rise nearly 500 feet tall.

Outside a hilltop monastery in India, a monument to a 20th-century Russian mystic.

Thousands of graves lurk below the surface of this park.

An underground world of gorgeous, palatial metro stations designed as a nuclear shelter complex.

The haunting peak of an old church is all that remains of a drowned Brazilian city.

Designed to allow funerals to proceed over the River Dulnain.

Unruly residents were housed in this one-person cell until the Black Maria arrived.

Water of undetermined depth has attracted rare fish and cult leaders alike.

Take a ride back in time with a steam locomotive trip through Eritrea’s mountainous countryside.

The ruins of a world-renowned medieval hospital.

A medieval setting reimagined into a unique art alley.

Not far from a popular beach, an unfinished, abandoned mansion for Bulgaria's last communist dictator.

A peculiar family mausoleum built by a German nobleman captivated by the occult.

This unique structure allowed boats to bypass underwater mine barriers in the channel to enter the harbor.

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

On the roof of the oldest department store in Tainan stands a Shinto shrine dating back to the 1930s.

Florence’s mother built a stairway down to her daughter’s coffin so she could comfort her during storms.

One of the world’s most colorful cemeteries, where each pigment is symbolic.

This palace was built for the last king of Myanmar.

The mouldering manses of wealthy colonials still pock the streets of a Curaçao neighborhood.