An 18th century fountain and two columns are all that remains of Rome's forgotten river harbor.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

This hidden oasis features a stunning view of the Hudson River and the Palisades from a castle-like museum.

A spectacular remnant of an Adler and Sullivan masterpiece that was destroyed in 1972.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Here be dragons.

This magnificent herd of stampeding elephants has been frozen in time for over a century.

Tucked in the back of this amazing antique store is an important piece of medical history.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

These artifacts were discovered during the construction of the airport, with some dating back to the Neolithic period.

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

A prehistoric landscape hidden in the cliffs of Maha'ulepu.

Infamous marsh filled with toxic waste, World War II-era London rubble, and dead mobsters galore.

Featuring the the longest lift span of any vertical-lift bridge in the world.

This historic lighthouse was well known for the large number of women who served as its keeper.

One of the oldest surviving Swedish-American homes in the United States.

The 28-foot granite map plots the locations of 40 theaters in New York City.

Perhaps the most scandalous statue of America's first president.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

A daily replay of the experiment that proved the rotation of the Earth.

Beautiful mosaics cover the first stations opened on New York City's newest subway line.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

One of the few remaining American elm trees in New York’s Tompkins Square Park was the birthplace of a new religion.