An Industrial Revolution-era public work that purified water using nothing but sand.

Baltimore's classic clock tower was once topped by a rotating, 20-ton medicine bottle.

The trials and tribulations of marking Poe's grave.

A girls' boarding school inspired by the Chicago World's Fair, once abandoned, now restored to strange and scenic glory.

Proto-CIA agents trained with grenades in the sand traps and fired machine guns from the fairways.

This massive swimming pool is the high tech home to the human-powered submarine races.

This museum sits on the site of a decommissioned military communications base.

This colonial cabin is the oldest building in High Point, built by one of the first settlers in the area.

A six-foot pair of socks hangs from a drawer of the world's largest bureau.

Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

From golden eagles to peregrine falcons, this rehabilitation and education center is a haven for birds of prey.

This sinkhole is disguised as a pond and named after the man who stumbled upon it.

The 15-foot-wide, 2-ton pan fries hundreds of chickens once a year.

The record holder for the world’s largest peach.

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

Rebuilt several decades ago, its striking murals prevent it from being reconsecrated as a church.

Eat your Big Mac in a DC-3.

This ancient market is often referred to as the oldest shopping mall in the world.

This one-of-a-kind Roman arch is not actually dedicated to the god Janus.

In the early Roman Empire, people deemed traitors and criminals were tossed to their deaths from this rock.

This small, ancient Roman temple was once a church dedicated to the patron saint of penitents.

This curious, round temple is the oldest still-standing marble building in Rome.

The scene of the largest surrender of Confederate troops at the end of the American Civil War.

This granite rock face is named for the magnificent reflection that occurs when the sun hits it just right.