Theme park featuring miniature replicas of European monuments.

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

Rare wooden escalators lead deep down into an otherwise staggeringly monotonous tiled tunnel.

South Korea's largely symbolic, barely used gateway to the North.

The best place for scenic views of the DMZ and North Korea.

Secret North Korean passage discovered below the world's most dangerous border.

The world's largest solar furnace uses 10,000 mirrors to concentrate the sun's rays to generate power.

This historic hotel invented the chocolate brownie.

A strange and haunting monument of unknown origin in the historic Graceland Cemetery.

A haunting statue called "Eternal Silence" has quite the reputation among visitors with active imaginations.

Home to one of the most popular teams in Scottish football history.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

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

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

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Seven mini rowhouses fill the gap between 54 and 70 Westerstraat.

Some 80,000 Delft Blue tiles line the inside of this Amsterdam walkway.

A set of seven houses, each built in a style that represents a European country.

Amsterdam's narrowest house facade is a monument to 17th-century tax evasion.

A hidden church in a hidden courtyard tells the story of the Miracle of Amsterdam.

Amsterdam's former hotspot for public executions and dissections.