A once grand hotel is being retaken by the wilderness it once capitalized on.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

This old cement mine has been used as everything from a mushroom farm to a recording studio.

Tucked away on a scenic trail, a modest memorial honors one of the greatest writers of our time.

Despite his legacy of work in Spain, Cuba, and Florida, the larger-than-life writer's grave is a simple affair tucked in an Idaho cemetery.

A floating cat sanctuary on an Amsterdam canal.

A tunnel with windows, so you don't miss out on the impressive views.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

This island hill is strewn with boulders carved by shipwreck victims from the age of sail.

The rusted remains of a victim of Hurricane Ike.

Uninhabited islet in the Caribbean is the sanctuary of giant lizards.

A serene temple with stunning stained glass hides in downtown Dallas.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

This small and often-overlooked museum holds some of Spain's finest artistic treasures.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

Commonly acknowledged as the only public monument to the Devil himself.

An ancient Egyptian temple in the middle of Madrid, Spain.

The fragmented remains of a massive public bath connected to the city's water supply.

This 15-foot tall obelisk commemorating the Philadelphia-Baltimore railroad connection sat neglected for over a century.

Current docking place of the SS United States, the fastest transatlantic ocean liner.

This elaborate towering structure was once famed for its revolutionary height.

Yo, Adrian!