Tokyo’s only Vaudeville-cuckoo clock–steampunk-Victorian curio cabinet time piece.

Experience park where visitors are told to expect the unexpected.

This faux-seedy Japanese arcade is made up to look like a maze of alleys straight out of a cyberpunk dystopia.

On Japan's Tashirojima Island, cats are king.

A magical place that lets you play in and explore the world of Studio Ghibli.

360° views of the city plus five floors of optical illusions and hands-on science.

This impressive collection of rare books on ancient mysticism inspired author Dan Brown.

Cat art as far as the eye can see.

The world's oldest bookshop still in operation.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

A unique Holocaust memorial tells the personal stories of the Jewish residents exiled from greater Berlin.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

From toys to kettles to scientific instruments, this German museum celebrates the beauty of 20th century design.

This World War II bunker now survives as a documentation of the Nazi regime and war crimes.

A fascinating insight into daily life in the Eastern Bloc.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

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

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

The most visited, and possibly most controversial, museum in Germany.

A slice of central Asia in the middle of Berlin.

Tucked away near more famous landmarks lies a statue meant to symbolize the confluence and continuing development of human culture.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.