The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

At 207 feet, one of the world's longest continuous escalators.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

These lush botanical gardens employ the most purrfect pest control force.

What looks like a simple quaint estate in rural Pennsylvania was in the 18th century home to a small monastic community.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

An outlandish shoe shaped house built by an eccentric millionaire.

The oldest farmer's market in America is so ancient it was approved by the King of England.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

An indoor miniature village and labor of love for Laurence Geiringer, a model railroad enthusiast.

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

A failed piece of Orientalism has become the proud symbol of a community.

In which a local geological marvel becomes a quaint roadside attraction.

These tourist trap caverns are said to be the former home of a legendary Pennsylvania Hermit.

America's greatest forgotten garden and the former stomping grounds of Son of Sam.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

Toxic waste disaster that founded the Superfund program.

New York's oldest concrete structure is being preserved thanks to the gentrification of Whole Foods.

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

Sniff the Titan Arum's rotting flesh.

Abandoned power station once home to a squatter community, now being developed into an arts center.

Once thought to be the fabled Holy Grail, it is now known to be an oil lamp.

The highest point on the island known for buildings that touch the sky.

Built hundreds of years ago this downtown iron barrier once protected a much despised king.