This municipal playground was co-created by the father of one of the most playful characters ever.

This remarkably simple jail went over a century without an escape.

The oldest continuously operating church in California.

A tree grown from astronaut seeds which were exposed to cosmic rays.

Life in this isolated, hilltop lighthouse was lonely, but it sure was lovely.

This French colonial post office is arguably the grandest in all of Southeast Asia.

Lines from a walking song are etched into a rock in Natural Bridge State Park.

This pink watchtower served as the seat of the Greek government after independence from the Turks.

A colorful "forest" made entirely from three tons of recycled plastic waste.

One of Vietnam's only mosques pays tribute to the country's Muslim minority.

A medieval castle in the middle of rural Texas.

Twelve hundred stone carvings guard this off-the-beaten-path Buddhist temple.

The bright red stripes streaking across the rocks are the star feature at this Icelandic waterfall.

Once a palace for the Archbishop of York, these 15th-century ruins now serve as a haunt for history buffs.

Acres of English cottage gardens, unexpectedly nestled in a Cleveland suburb.

Originally intended as a temporary installation, this sculpture is now a permanent part of a stunning Scottish beach.

Inspired by the local football team, this giant ant is meant to draw tourists to a tiny Australian town.

The centuries-old trees are draped with Spanish moss to make them look like wizened elders.

Surrounded by ash fields in Iceland, an impossibly verdant valley looks like something out of a fairytale.

When the rain falls, this drain system turns into a musical instrument.

The overgrown ruins of a once thriving World War I-era copper mine.

Explore an early California pioneer's rancho hidden in LA's manufacturing hinterland.

The facade of this relic from the Klondike gold rush is decorated with over 8,800 pieces of driftwood.

The spot where the two men ate together now stands enclosed in glass.