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

The unusual patterns in this rock formation result from two distinct modes of weathering.

This raised bulls-eye visible from space was the subject of an intense geologic controversy.

Ancient pueblos built into the base of a natural canyon wall.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

This candy-colored storybook village originated as a 19th-century Methodist campground.

The filming location of a shark attack in Steven Spielberg's famous shark movie.

A historic casino where Dostoyevsky is said to have lost it all on a single spin of the roulette wheel.

This naturally heated mountainous creek has created a group of neon blue pools of potentially deadly boiling water.

It's good luck to be mocked by this monkey.

I-95's Tijuana-style celebration of kitsch at the Carolina border.

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

This Wall Street bar was once a hub of revolutionary activity where Washington famously bid farewell to his troops.

A very classy 1920s-era bar right in Grand Central Station.

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

The origins of midtown Manhattan's anachronistic wooden farmhouse remain a mystery.

A miniature rainforest is growing inside of a Midtown Manhattan office building.

Commemorating the spot where the famous scientist fed his pigeons.

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

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

A massive Montreal stadium that has seen nothing but trouble since its inception.

A contemporary fresco movement illustrates the region's rich history.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.