This is Bremen’s oldest historic district, famous for its labyrinth of narrow medieval alleys lined with tiny, colorful 15th-century houses that resemble beads on a rope.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

Thousands of signed dollar bills turn a simple tavern into a living record of travelers’ comings and goings.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

The world's largest frame offers spectacular views of the city's past and present.

Climb inside an iron crystal magnified 165 billion times its normal size.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

This African beach is home to thousands of rare mainland penguins that are known for their annoying voice.

This futuristic building is yet another architectural wonder in Dubai.

A preposterously luxurious hotel with gold-plated iPads, Rolls Royce chauffeurs, and a staff that trains by watching "Downton Abbey."

On any given day this sprawling market houses literally tons of government-regulated gold, gems, and precious metals.

Billed as the "largest natural flower garden in the world" this Middle Eastern show field has little competition at 45 million flowers.

One of New Zealand’s few castles boasts beautiful gardens, grand architecture, and a history filled with family drama.

One of the world's steepest streets seems to have houses sliding down it.

New Zealand's epic shrine to all things puzzling.

A solitary tree has grown up all alone on Lake Wānaka, backdropped by the beautiful Southern Alps.

A glacier pocked with ice caves and surrounded by rainforests.

This strange geological landscape erupts with sudden bursts of water.

This beach provides a glimpse of the ancient seafloor without getting wet.

The world's only complete colossal squid specimen is on display at the Te Papa Museum.

New Zealand's only running funicular railway.

The highest concentration of Art Deco buildings in the world.

Major tourist destination known for its bubbling mud-pools and hot thermal springs.