Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

Colorful curls of hand-blown glass form a captivating tower in San Antonio's Central Library.

An ivy-covered arch bridge dedicated to Tejano music singer and legend Rosita Fernandez.

A pink sandstone column once used in ancient times to measure one's belly after a night of debauchery.

There has been an astronomical clock on this spot since the 14th century.

Explore this medieval cathedral by trying to spot all the malevolent monsters hiding in its beautifully colored windows.

Visitors dating back to the 1600s carved their marks in the stones of the iconic tower.

This bridge was constructed from the rubble of the infamous Bastille.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

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

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

The New York hotel where tragic visionary Nikola Tesla spent his final hours, destitute and alone but for the pigeons.

Plot your trip through the city on the sidewalk.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

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

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Elevated freight railway turned wildly successful urban park.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

A quartet of tiled art pieces adorn the floors of this prestigious art museum.

Originally meant to hold a statue of King William IV, this support sat empty for years. Today, it hosts a rotating cast of public artwork.

At almost 1,000 years old, this is the oldest known door in all of Britain.