The mastermind behind this palatial hotel perished on the Titanic weeks before its grand opening.

Art and armour fill every inch of this rich kid's Italian villa.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

The oldest operating pharmacy in the world features 800-year-old recipes.

The city’s oldest gateway to the galaxy lies at the entrance to the Royal Botanical Gardens.

Dozens of musicians have planted trees in this Danish park, and donated songs to go with them.

Summer in Scotland begins with a spectacularly wild and colorful event rooted in ancient pagan traditions.

This repurposed church offers a more literal way to get closer to the heavens.

The only thing better than tubing down New Jersey's scenic Delaware River is doing so while eating a hot dog from a giant floating stand.

Considered one of the most haunted places in Europe, this 800-year-old castle was home to noble prisoners.

One of the world's smallest prisons boasts just two small cells.

This museum explores the grim reality of life in the earliest British colonies in America.

The skeletal frame of a decommissioned gas-pumping station offers breathtaking views of greater Berlin.

Some of the greatest minds in the history of Hungarian art and science converged in this café.

Time stands still at this serene burial ground in the center of Budapest.

A Hungarian optometrist's charming collection of Asian art and curiosities.

A two-way chairlift system between Zugliget and the highest point in the city.

Electrical curiosity museum housed in an old transformer station.

A forgotten graveyard lost in the tangles of an overgrown garden.

A fake Transylvanian castle houses a cathedral of antlers.

A Trabant car, a kangaroo statue, and a plethora of plants take over this abandoned-factory-turned-bar.

This hidden art nouveau gem was designed by an architect in search of a national style.

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

This quaint Hungarian railway system is operated exclusively by children between the ages of 10 and 14.