One of the most scenic stretches of road in America winds between some of the country's oldest trees.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

Despite many attempts to finish this overpass, it has been abandoned since the 1970s.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

Take a cruise with no movement but plenty of style in this one-of-a-kind boat mall.

Relics designed to contain and conceal Yugoslavian submarines.

The remains of Crystal Palace Great Exhibition of 1851.

A 24-hour vending machine restocked daily with homemade full-sized pecan pies.

The burial place of some of Mexico's most prominent residents is full of macabre stories and hidden masonic symbols.

A mysterious shape catches the eye in this 16th-century painting.

Where condemned pirates met their grisly end at the gallows on the River Thames.

The most famous location in China was home to whole dynasties worth of imperial rulers.

Known as the "Traitor's Gate."

This 18th-century complex has served as a mosque, mausoleum, and one of the largest caravanserais in India.

In the palace with a thousand doors, not all of them are guaranteed to lead you somewhere new.

An inconspicuous footbridge beloved by San Diego locals.

The world's largest secondhand book market is a haven for bibliophiles and bargain hunters.

Built for an exposition in 1915, these horticultural displays have stood the test of time.

The Roman Emperor's lost summer home and grotto full of enormous sculptures sit along the Italian seashore.

The hallucinogenic center of the ancient world.

A giant roundabout made up of six smaller roundabouts can befuddle the uninitiated.