The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

The best place in the world to buy tinned fish.

This endearingly discomfited urinating statue commemorates the sneaky pees had by us all.

A subterranean house of worship carved right out of the bedrock.

The oldest church in the Estonian capital is home to over 100 fantastical cemetery coats-of-arms.

The Guardian of Tallinn.

"There's nothing there," and other lies the KGB told us.

This medieval Estonian tower provides access to a series of tunnels that have been home to soldiers, punks, and fine art.

This replica stave church looks like a piece of Norway was simply plopped down in South Dakota.

One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

A fitting attraction for the corn capital of the world.

A cemetery housing wild west legends in South Dakota.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

An exquisite collection of fairytale conveyances that puts most car museums to shame.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

This ancient structure is widely thought to be the oldest intact pyramid in the world.

Slum Settlement Filled With Mountains of Garbage.

A powerful tribute to the victims who suffered under Ethiopia's most devastating regime.

Vortex-shaped aquarium hosts Europe's largest school of piranhas and other ocean creatures.

A 19th-century subterranean reservoir repurposed as a contemporary art cave.