This monument to a veteran of the Mexican-American War is one of only two in Manhattan that serve as an actual mausoleum.

Manhattan and the Bronx have been playing tug-of-war over this former island neighborhood for more than a century.

Hidden in one of New York's oldest subway stations is the final remnant of the site of the bizarre Shakespeare Riots.

A historic 1890s architectural masterpiece with an iconic clock tower that, once open to the public, now faces an uncertain future.

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

One of only two commuter aerial tramways in the United States.

Some islands... they come, they go, especially on Lake Travis.

"Dallas’s pretty much only carnivorous plant gallery."

An antique horse-drawn hearse provided French luxury for the dead in this Texan town.

A modern-day Lascaux cave underneath Paris.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

Paris' linguistic guide to the international language of, yes, love.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

Cozy basement bar sports an inventory of over 2,000 beers.