Monument to a brutal, ineffectual US bombing campaign and a sobering reminder of the human cost of the Vietnam War.

Home of the unusual art of water puppetry, one of Vietnam's oldest curiosities.

A nightmare for the claustrophobic lies hidden in Southeast Asia.

The second largest reclining Buddha in the world got "lost" for over 120 years.

This golden temple is surrounded by hundreds of stone tablets that comprise the "world's largest book."

The oldest teak bridge in the world is made from the remains of a royal palace.

This gem-encrusted temple is said to contain some of the Buddha's hair which can make the deaf hear and the blind see.

Over 2,000 ancient temples dot the Myanmar landscape at the site of this famed archaeological site.

Denmark's famous pseudo-hill.

From buck blood to Theriak miracle tonic, this collection of Renaissance chemist's gear look's like a wizard's pantry.

The greatest amusement park in the world is wall-to-wall farting dogs, puking rats, and cows with exposed breasts for the whole family.

Mounds, rune stones, and a 1,000-year-old church, left behind by Denmark's first two kings.

The original home of the Lego has a huge amusement park dedicated to the iconic plastic toy.

The oldest amusement park in the world has been providing a nice spot to have some fun since the 1500s.

The northernmost point in Denmark is a turbulent sandbar created by two clashing seas.

A natural wonder in south Denmark.

Old Danish castle immortalized in Shakespeare's Hamlet.

This chimerical bridge/tunnel appears to dead end right into the sea.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

Religious structure known for its sculpted details.

A memorial museum to the political prisoners who were held at Sighet Prison, once one of the most feared places in Romania.

Romania's triumphal arch looks out over Bucharest.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

Gigantic Romanian salt mines used to heal respiratory conditions.