A huge museum of much more than just agriculture displayed in a princess's palace.

The largest known Ancient Egyptian obelisk.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

Ozymandias’ time-keeping temple.

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

On a winding Vienna side street, one museum has turned their windows into a monument to history’s peace-minded heroes.

The final resting place of 121 victims of the RMS Titanic, 42 of which may never be identified.

The celebrated eyesore created by starry-eyed sweethearts.

Former hunting lodge of a duke who was an avid collector of impressionist works.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

The Hudson River School comes alive at this palatial estate.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

Decades after testing the polio vaccine on unwitting patients, this historic mental hospital sits in ruin.

Why have you never heard of the second most popular tourist site in New York?

The remnants of two World's Fairs are here, complete with a 12-story globe, a mini-Manhattan, and a UFO-shaped pavilion.

Reclaimed by nature, the ruins of Doodletown, New York are remnants of a town consumed by a state park.

The end of the 4 Line is also the end of the line for 300,000 souls in one of NYC's most illustrious cemeteries.

Elevated freight railway turned wildly successful urban park.

100 massive sculptures in the Hudson River Valley.

The final resting place for the remains of 143 Habsburg royalty.

Tucked away in a Prague park, a statue beloved by romantics honors a poet so nice they buried him twice.

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