The largest flower auction house in the world.

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

This lovely burial mound is actually a replica that was installed after archeologists excavated the original.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

Legends surround this jagged rock formation in the New Mexico desert.

This beautiful, historic church looks like something out of a simpler past.

This 18th-century dissection theater's frescoes display a gorgeous tension between the terrestrial and esoteric.

Tour the sci-fi-esque reality of governmental disease management.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

Just a few miles from downtown Atlanta is a trail covered in a crazy collection of outsider art.

One of England's most famous churches hides a pair of little known architectural treasures.

The Bloemen Route, or “Flower Route”, stretches 25 miles through prime Dutch tulip country as a result of “tulip mania,” the world’s first economic bubble.

You can still ride this 100-year-old work of art in Brooklyn's largest public park.

A museum and shop on Bourbon Street located in the former home of the second Voodoo Queen of New Orleans.

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

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

See massive fossils that are over 200 million years old in northeastern Arizona.

A motel dedicated to Southwestern nostalgia.

This elegant arc of a waterfall marks a religious turning point.

Hoodoos, naturally eroded land formations, stand 20 feet tall in the Canadian badlands.

As if T-rex wasn't big enough, this Canadian monument is four times larger than the real thing.

A classic gold rush hotel can be expected to pick up some ghosts along the way, and the Golden North is no exception.