The ruins of a 19th-century aqueduct run through this Brazilian island's deep forest.

A mysterious concrete hand reaches out from between the stones of Uniwersytecki bridge.

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.

The unusual patterns in this rock formation result from two distinct modes of weathering.

Remains of an abandoned coral city.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

Rainbow-hued local gem in Venice.

This statue once earned the distinction as one of the "Three Major Disappointments of the World."

A preserved oasis with traditional Andalusian-style architecture and beautiful views of the Nile.

An exotic jungle hideaway run entirely by indigenous Kichwa women.

A Surreal flight of architectural fancy in Vietnam's Central Highlands.

Costa Rican accommodation resembles a crash site, but with a nice balcony.

An eccentric garden of sculptures crafted in India decorate an Irish green space dedicated to Alan Turing.

The ruins of a world-renowned medieval hospital.

Apartment complexes built into huge repurposed natural gas tanks.

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

Believed to have once stored either human remains or rice wine, thousands of mysterious stone jars lie in ruin.

A Bohemian "anti-hotel" offers off-kilter stays in Sri Lanka.

Inside the columbarium, thousands of colorful, high-tech Buddhas guard the ashes of the dead.

The small sanctuaries lie just off the beaten path near one of Bhutan's most famous attractions.