This abandoned subway station can still be seen on regular commuter trips.

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

Visitors can walk over the largest concentration of Columbian mammoths to have died from one event.

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

Each of these gorgeous, intricately decorated rooms is painstakingly crafted to the scale of 1 inch: 1 foot.

The first and only carousel with a lineup entirely of insects.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

Golden Gate Park's historic collection of plants.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

This 1967 experiment in modular architecture was designed to be a new model for urban living.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

Frida Kahlo's childhood home, now a museum of her life and works.

During the holidays, a vintage subway train whisks New Yorkers back in time.

A popular European tradition makes its way to the states on one of America's most famous bridges.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

Great place to have a drink and a bite to eat in an atmosphere laden with New York's Bohemian past.

A fascinating insight into daily life in the Eastern Bloc.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

The final resting place of the great escape artist, where some still gather to wait for his escape from death.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Tucked in a nondescript downtown Brooklyn mall is a bar containing a remarkable turn of the century anatomical wax collection last seen in 1920s Berlin.