This artificial cave looks like something out of a fairytale.

Started as a kitchen garden, now the second largest botanical garden in the world.

A restaurant and observation deck built in a unique broadcasting antenna.

Late at night, the bust of the "Dracula" actor was snuck onto the facade of this Budapest castle.

A mysterious ancient elephant said to possess magic powers is now the symbol of a Sicilian city.

The largest greenhouse in the world is home to over one million types of plants.

A statue in the heart of Edinburgh honors a bear that served in the Polish military during World War II.

Human-made caves excavated to hide a secret society of wealthy pagans.

The most loyal of little dogs, or a Victorian era publicity stunt?

Ancient Egyptian wigs, South American feather headdresses, a bounty of anthropological artifacts in Oxford.

Gothic tower where Lord Alfred Tennyson wrote the poem "The Sleeping Beauty."

A labyrinthine network of chambers with a storied past hides below Edinburgh's South Bridge.

A museum of alchemy and a basement laboratory all housed in an ancient building in a Gothic tower.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

One of the oldest and most significant collections of Ancient Egyptian archeology outside of Egypt.

The astonishing collection of an infamous criminologist.

The site of the climactic scene from the classic horror film is now a historic landmark.

Home to items never before seen by the public.

The world's shortest funicular ferries beachgoers a whopping 128 feet from clifftop to shore.

The author of Frankenstein is buried here, along with her parents and the heart of her husband, the poet Percy Bysshe Shelley.

A museum based on the collection of a Victorian family. Housed in a remaining Victorian villa.

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

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."