Visit the monolithic tomb of America's most famous general.

You must take the A train... to the last active cemetery in Manhattan.

A crumbling staircase in upper Manhattan is all that remains of one of the most important sites in sports history.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

This small museum tucked within a subway station holds pieces from Madrid's past.

After the queen of Spain had a dream where these statues fell and crushed her, they were removed from the palace and given new homes around Madrid.

An ancient Egyptian temple in the middle of Madrid, Spain.

The remains of a convent turned military barrack in the heart of Madrid.