This haunting monument honors the victims of 9/11.

The sophisticated hydraulic system of the Nazca civilization.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

The absurd creation is a compulsory destination for selfies in Buffalo.

A monument to the egos of two railroad magnates that fell into decline along with their careers.

Rochester's signature culinary delicacy.

The dairy farm in upstate New York where nearly half a million people gathered for three days of peace and music in 1969.

At this small shop off a dirt road in the forest, the specialty is eel the owner caught and smoked himself.

The video game-themed street art first popped up in the French city.

The final resting place of the "father of special effects."

A series of abstract, silly sculptures represent the works of a great modern classical composer.

The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

This poignant display is now a memorial to these regionally extinct species.

A 120-year oil leak slowly unleashes more gallons of oil than the Exxon/Mobil disaster.

The longest continuous underwater road in North America was built at the insistence of Franklin Roosevelt.

This city park was once a lookout point for George Washington’s army during the Battle of Brooklyn in 1776.

During the 19th century, you could pay for violence off a prix fixe menu on this Manhattan street.

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

The most confusing clock in New York.

An artist's cute bronze subway sculptures belie his violent artistic past.

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

Sniff the Titan Arum's rotting flesh.