This graveyard is home to the so-called "Witch's Circle."

An obscure waterfall that looks like something out of a fantasy novel.

Only a few pieces remain of the structure that carried people and goods across the Thames for some 600 years.

With nickel-steel armor and three-inch thick bullet resistant windows, FDR's train was a rolling fortress.

Located within a historic park, the beacon is the oldest standing structure in Miami.

Former villa and estate of James Deering developed to preserve native tropical forests.

This beautiful Miami garden was designed as a laboratory for tropical plants.

St Bernard de Clairvaux Episcopal Church, better known as one of the oldest European buildings in the Western Hemisphere.

An antiquated German apothecary on Chicago's North Side.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

This baseball diamond was home to the Rockford Peaches, a team featured in the hit film "A League of Their Own."

Mile-long cave system near Great Smoky Mountains.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

An abandoned town is hidden in Great Smoky Mountains National Park.

Vikings and Evangelicals have both had a hand in this replica medieval church.

This lakefront cottage was crafted in the 1800s and was once a sanitorium.

This house renovated by Frank Lloyd Wright was the centerpiece of a lavish 20th-century estate.

This cemetery is all that remains of a school for "wayward" girls.

This elaborate Hindu temple is located in a Chicago suburb, but looks like it was transported directly from India.

The face of a woman pushes its way through the earth.

A towering Art Deco movie palace made to look like a Mayan temple.

The 19th-century ruins hide deep in an overgrown forest.

Although now a decaying ruin, this stone cabin's history includes several notable figures.

This former nursery supplied plants for the creation of Chicago's largest park.