A sliver of nostalgia in Seattle's Viretta Park.

This former coal gasification plant found a curious second life as a popular public park.

A wall of chewing gum moonlights as collective art.

This semi-secret garden in south Seattle emulates a traditional Japanese garden using the plants of the Pacific Northwest.

A 100-year-old purveyor of curiosities, curios, and kitsch featuring mummies, shrunken heads, and a Fiji Mermaid.

A walk through the historic city center, under the streets of Seattle.

A giant Troll lurks under one of Seattle's oldest bridges.

The building features one of the last remaining free-floating spiral grand staircases in the U.S.

A town's monument to a touch-football victory 50 years in the making.

An abandoned 19th-century hospital now swirling in ghost stories.

A mysterious taxidermy man-beast of the seven seas.

Few other hotels can rival the grandeur of the Castle in the Rockies.

This public elevator links the lower city to the upper city of Salvador.

Where thousands of slaves passed through the "Door of No Return."

An enormous public square and parade ground built to celebrate Ghana's independence.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

It took 40 years to build this Eden-like garden in Marrakech, later restored by Yves Saint-Laurent.

An awe-inspiring mosque in Morocco with one of the tallest minarets in the world.

An ancient knight and a symbol of the city's freedom.

Gargoyle head that brings good luck.

The complex has been abandoned since the Croatian War of Independence, barring a stint as a set for 'Game of Thrones.'

This Nazi ruin was the site where Hitler was almost blown up by a suitcase bomb.

Portugal's National Pantheon has a history of curses, collapses and financial problems.

The world's oldest bookshop still in operation.